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@turf/meta - npm Package Compare versions

Comparing version 5.0.4 to 5.1.0

main.mjs

140

index.d.ts

@@ -13,5 +13,5 @@ import {

AllGeoJSON,
FeatureGeometryCollection,
ExtendedFeatureCollection,
Properties,
Geometries,
Lines,
BBox,

@@ -26,3 +26,8 @@ Id

geojson: AllGeoJSON,
callback: (previousValue: Reducer, currentCoord: number[], coordIndex: number, featureIndex: number, featureSubIndex: number) => Reducer,
callback: (previousValue: Reducer,
currentCoord: number[],
coordIndex: number,
featureIndex: number,
multiFeatureIndex: number,
geometryIndex: number) => Reducer,
initialValue?: Reducer

@@ -36,3 +41,7 @@ ): Reducer;

geojson: AllGeoJSON,
callback: (currentCoord: number[], coordIndex: number, featureIndex: number, featureSubIndex: number) => void
callback: (currentCoord: number[],
coordIndex: number,
featureIndex: number,
multiFeatureIndex: number,
geometryIndex: number) => void
): void;

@@ -44,4 +53,5 @@

export function propEach<Props extends Properties>(
geojson: Feature<any> | FeatureCollection<any> | FeatureGeometryCollection,
callback: (currentProperties: Props, featureIndex: number) => void
geojson: Feature<any> | FeatureCollection<any> | Feature<GeometryCollection>,
callback: (currentProperties: Props,
featureIndex: number) => void
): void;

@@ -52,5 +62,7 @@

*/
export function propReduce<Reducer extends any, Props extends Properties>(
geojson: Feature<any> | FeatureCollection<any> | FeatureGeometryCollection,
callback: (previousValue: Reducer, currentProperties: Props, featureIndex: number) => Reducer,
export function propReduce<Reducer extends any, P = Properties>(
geojson: Feature<any, P> | FeatureCollection<any, P> | Geometries | GeometryCollection,
callback: (previousValue: Reducer,
currentProperties: P,
featureIndex: number) => Reducer,
initialValue?: Reducer

@@ -62,12 +74,9 @@ ): Reducer;

*/
export function featureReduce<Reducer extends any, Geom extends GeometryObject>(
geojson: Feature<Geom> | FeatureCollection<Geom> | FeatureGeometryCollection,
callback: (previousValue: Reducer, currentFeature: Feature<Geom>, featureIndex: number) => Reducer,
export function featureReduce<Reducer extends any, G extends Geometries, P = Properties>(
geojson: Feature<G, P> | FeatureCollection<G, P> | Feature<GeometryCollection, P>,
callback: (previousValue: Reducer,
currentFeature: Feature<G, P>,
featureIndex: number) => Reducer,
initialValue?: Reducer
): Reducer;
export function featureReduce<Reducer extends any, Feat extends Feature<any>>(
geojson: Feat | ExtendedFeatureCollection<Feat>,
callback: (previousValue: Reducer, currentFeature: Feat, featureIndex: number) => Reducer,
initialValue?: Reducer
): Reducer;

@@ -77,10 +86,7 @@ /**

*/
export function featureEach<Geom extends GeometryObject>(
geojson: Feature<Geom> | FeatureCollection<Geom> | FeatureGeometryCollection,
callback: (currentFeature: Feature<Geom>, featureIndex: number) => void
export function featureEach<G extends Geometries, P = Properties>(
geojson: Feature<G, P> | FeatureCollection<G, P> | Feature<GeometryCollection, P>,
callback: (currentFeature: Feature<G, P>,
featureIndex: number) => void
): void;
export function featureEach<Feat extends Feature<any>>(
geojson: Feat | ExtendedFeatureCollection<Feat>,
callback: (currentFeature: Feat, featureIndex: number) => void
): void;

@@ -95,5 +101,10 @@ /**

*/
export function geomReduce<Reducer extends any, Geom extends GeometryObject>(
geojson: Feature<Geom> | FeatureCollection<Geom> | Geom | GeometryCollection | FeatureGeometryCollection,
callback: (previousValue: Reducer, currentGeometry: Geom, featureIndex: number, currentProperties: Properties, currentBBox: BBox, currentId: Id) => Reducer,
export function geomReduce<Reducer extends any, G extends Geometries, P = Properties>(
geojson: Feature<G, P> | FeatureCollection<G, P> | G | GeometryCollection | Feature<GeometryCollection, P>,
callback: (previousValue: Reducer,
currentGeometry: G,
featureIndex: number,
featureProperties: P,
featureBBox: BBox,
featureId: Id) => Reducer,
initialValue?: Reducer

@@ -105,5 +116,9 @@ ): Reducer;

*/
export function geomEach<Geom extends GeometryObject>(
geojson: Feature<Geom> | FeatureCollection<Geom> | Geom | GeometryCollection | FeatureGeometryCollection,
callback: (currentGeometry: Geom, featureIndex: number, currentProperties: Properties, currentBBox: BBox, currentId: Id) => void
export function geomEach<G extends Geometries, P = Properties>(
geojson: Feature<G, P> | FeatureCollection<G, P> | G | GeometryCollection | Feature<GeometryCollection, P>,
callback: (currentGeometry: G,
featureIndex: number,
featureProperties: P,
featureBBox: BBox,
featureId: Id) => void
): void;

@@ -114,5 +129,8 @@

*/
export function flattenReduce<Reducer extends any, Geom extends GeometryObject>(
geojson: Feature<Geom> | FeatureCollection<Geom> | Geom | GeometryCollection | FeatureGeometryCollection,
callback: (previousValue: Reducer, currentFeature: Feature<Geom>, featureIndex: number, featureSubIndex: number) => Reducer,
export function flattenReduce<Reducer extends any, G extends Geometries, P = Properties>(
geojson: Feature<G, P> | FeatureCollection<G, P> | G | GeometryCollection | Feature<GeometryCollection, P>,
callback: (previousValue: Reducer,
currentFeature: Feature<G, P>,
featureIndex: number,
multiFeatureIndex: number) => Reducer,
initialValue?: Reducer

@@ -124,5 +142,7 @@ ): Reducer;

*/
export function flattenEach<Geom extends GeometryObject>(
geojson: Feature<Geom> | FeatureCollection<Geom> | Geom | GeometryCollection | FeatureGeometryCollection,
callback: (currentFeature: Feature<Geom>, featureIndex: number, featureSubIndex: number) => void
export function flattenEach<G = Geometries, P = Properties>(
geojson: Feature<G, P> | FeatureCollection<G, P> | G | GeometryCollection | Feature<GeometryCollection, P>,
callback: (currentFeature: Feature<G, P>,
featureIndex: number,
multiFeatureIndex: number) => void
): void;

@@ -133,5 +153,10 @@

*/
export function segmentReduce<Reducer extends any>(
geojson: Feature<any> | FeatureCollection<any> | GeometryObject | GeometryCollection | FeatureGeometryCollection,
callback: (previousValue?: Reducer, currentSegment?: Feature<LineString>, featureIndex?: number, featureSubIndex?: number, segmentIndex?: number) => Reducer,
export function segmentReduce<Reducer extends any, P = Properties>(
geojson: FeatureCollection<Lines, P> | Feature<Lines, P> | Lines | Feature<GeometryCollection, P> | GeometryCollection,
callback: (previousValue?: Reducer,
currentSegment?: Feature<LineString, P>,
featureIndex?: number,
multiFeatureIndex?: number,
segmentIndex?: number,
geometryIndex?: number) => Reducer,
initialValue?: Reducer

@@ -143,5 +168,9 @@ ): Reducer;

*/
export function segmentEach(
geojson: Feature<any> | FeatureCollection<any> | GeometryObject | GeometryCollection | FeatureGeometryCollection,
callback: (currentSegment?: Feature<LineString>, featureIndex?: number, featureSubIndex?: number, segmentIndex?: number) => void
export function segmentEach<P = Properties>(
geojson: AllGeoJSON,
callback: (currentSegment?: Feature<LineString, P>,
featureIndex?: number,
multiFeatureIndex?: number,
segmentIndex?: number,
geometryIndex?: number) => void
): void;

@@ -152,5 +181,9 @@

*/
export function lineReduce<Reducer extends any>(
geojson: AllGeoJSON,
callback: (previousValue?: Reducer, currentLine?: Feature<LineString>, featureIndex?: number, featureSubIndex?: number, lineIndex?: number) => Reducer,
export function lineReduce<Reducer extends any, P = Properties>(
geojson: FeatureCollection<Lines, P> | Feature<Lines, P> | Lines | Feature<GeometryCollection, P> | GeometryCollection,
callback: (previousValue?: Reducer,
currentLine?: Feature<LineString, P>,
featureIndex?: number,
multiFeatureIndex?: number,
geometryIndex?: number) => Reducer,
initialValue?: Reducer

@@ -162,13 +195,8 @@ ): Reducer;

*/
export function lineEach<T extends LineString | MultiLineString | Polygon | MultiPolygon>(
geojson: Feature<T> | T,
callback: (currentLine?: Feature<LineString>, featureIndex?: number, featureSubIndex?: number, lineIndex?: number) => void
export function lineEach<P = Properties>(
geojson: FeatureCollection<Lines, P> | Feature<Lines, P> | Lines | Feature<GeometryCollection, P> | GeometryCollection,
callback: (currentLine?: Feature<LineString, P>,
featureIndex?: number,
multiFeatureIndex?: number,
geometryIndex?: number) => void
): void;
export function lineEach<Feat extends Feature<LineString>>(
geojson: Feat | ExtendedFeatureCollection<Feat>,
callback: (currentLine?: Feat, featureIndex?: number, featureSubIndex?: number, lineIndex?: number) => void
): void;
export function lineEach<Feat extends Feature<MultiLineString | Polygon | MultiPolygon>>(
geojson: Feat | ExtendedFeatureCollection<Feat>,
callback: (currentLine?: Feature<LineString>, featureIndex?: number, featureSubIndex?: number, lineIndex?: number) => void
): void;

277

index.js

@@ -9,5 +9,5 @@ import { feature, lineString } from '@turf/helpers';

* @param {number} coordIndex The current index of the coordinate being processed.
* Starts at index 0.
* @param {number} featureIndex The current index of the feature being processed.
* @param {number} featureSubIndex The current subIndex of the feature being processed.
* @param {number} featureIndex The current index of the Feature being processed.
* @param {number} multiFeatureIndex The current index of the Multi-Feature being processed.
* @param {number} geometryIndex The current index of the Geometry being processed.
*/

@@ -19,4 +19,4 @@

* @name coordEach
* @param {(FeatureCollection|Feature|Geometry)} geojson any GeoJSON object
* @param {Function} callback a method that takes (currentCoord, coordIndex, featureIndex, featureSubIndex)
* @param {FeatureCollection|Feature|Geometry} geojson any GeoJSON object
* @param {Function} callback a method that takes (currentCoord, coordIndex, featureIndex, multiFeatureIndex)
* @param {boolean} [excludeWrapCoord=false] whether or not to include the final coordinate of LinearRings that wraps the ring in its iteration.

@@ -29,7 +29,8 @@ * @example

*
* turf.coordEach(features, function (currentCoord, coordIndex, featureIndex, featureSubIndex) {
* turf.coordEach(features, function (currentCoord, coordIndex, featureIndex, multiFeatureIndex, geometryIndex) {
* //=currentCoord
* //=coordIndex
* //=featureIndex
* //=featureSubIndex
* //=multiFeatureIndex
* //=geometryIndex
* });

@@ -40,3 +41,3 @@ */

if (geojson === null) return;
var featureIndex, geometryIndex, j, k, l, geometry, stopG, coords,
var j, k, l, geometry, stopG, coords,
geometryMaybeCollection,

@@ -63,3 +64,3 @@ wrapShrink = 0,

// be required with the normalization approach.
for (featureIndex = 0; featureIndex < stop; featureIndex++) {
for (var featureIndex = 0; featureIndex < stop; featureIndex++) {
geometryMaybeCollection = (isFeatureCollection ? geojson.features[featureIndex].geometry :

@@ -70,6 +71,7 @@ (isFeature ? geojson.geometry : geojson));

for (geometryIndex = 0; geometryIndex < stopG; geometryIndex++) {
var featureSubIndex = 0;
for (var geomIndex = 0; geomIndex < stopG; geomIndex++) {
var multiFeatureIndex = 0;
var geometryIndex = 0;
geometry = isGeometryCollection ?
geometryMaybeCollection.geometries[geometryIndex] : geometryMaybeCollection;
geometryMaybeCollection.geometries[geomIndex] : geometryMaybeCollection;

@@ -87,5 +89,5 @@ // Handles null Geometry -- Skips this geometry

case 'Point':
callback(coords, coordIndex, featureIndex, featureSubIndex);
callback(coords, coordIndex, featureIndex, multiFeatureIndex, geometryIndex);
coordIndex++;
featureSubIndex++;
multiFeatureIndex++;
break;

@@ -95,7 +97,7 @@ case 'LineString':

for (j = 0; j < coords.length; j++) {
callback(coords[j], coordIndex, featureIndex, featureSubIndex);
callback(coords[j], coordIndex, featureIndex, multiFeatureIndex, geometryIndex);
coordIndex++;
if (geomType === 'MultiPoint') featureSubIndex++;
if (geomType === 'MultiPoint') multiFeatureIndex++;
}
if (geomType === 'LineString') featureSubIndex++;
if (geomType === 'LineString') multiFeatureIndex++;
break;

@@ -106,17 +108,20 @@ case 'Polygon':

for (k = 0; k < coords[j].length - wrapShrink; k++) {
callback(coords[j][k], coordIndex, featureIndex, featureSubIndex);
callback(coords[j][k], coordIndex, featureIndex, multiFeatureIndex, geometryIndex);
coordIndex++;
}
if (geomType === 'MultiLineString') featureSubIndex++;
if (geomType === 'MultiLineString') multiFeatureIndex++;
if (geomType === 'Polygon') geometryIndex++;
}
if (geomType === 'Polygon') featureSubIndex++;
if (geomType === 'Polygon') multiFeatureIndex++;
break;
case 'MultiPolygon':
for (j = 0; j < coords.length; j++) {
for (k = 0; k < coords[j].length; k++)
for (k = 0; k < coords[j].length; k++) {
for (l = 0; l < coords[j][k].length - wrapShrink; l++) {
callback(coords[j][k][l], coordIndex, featureIndex, featureSubIndex);
callback(coords[j][k][l], coordIndex, featureIndex, multiFeatureIndex, geometryIndex);
coordIndex++;
}
featureSubIndex++;
if (geomType === 'Polygon') geometryIndex++;
}
multiFeatureIndex++;
}

@@ -155,4 +160,5 @@ break;

* Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
* @param {number} featureIndex The current index of the feature being processed.
* @param {number} featureSubIndex The current subIndex of the feature being processed.
* @param {number} featureIndex The current index of the Feature being processed.
* @param {number} multiFeatureIndex The current index of the Multi-Feature being processed.
* @param {number} geometryIndex The current index of the Geometry being processed.
*/

@@ -175,3 +181,3 @@

*
* turf.coordReduce(features, function (previousValue, currentCoord, coordIndex, featureIndex, featureSubIndex) {
* turf.coordReduce(features, function (previousValue, currentCoord, coordIndex, featureIndex, multiFeatureIndex, geometryIndex) {
* //=previousValue

@@ -181,3 +187,4 @@ * //=currentCoord

* //=featureIndex
* //=featureSubIndex
* //=multiFeatureIndex
* //=geometryIndex
* return currentCoord;

@@ -188,5 +195,5 @@ * });

var previousValue = initialValue;
coordEach(geojson, function (currentCoord, coordIndex, featureIndex, featureSubIndex) {
coordEach(geojson, function (currentCoord, coordIndex, featureIndex, multiFeatureIndex, geometryIndex) {
if (coordIndex === 0 && initialValue === undefined) previousValue = currentCoord;
else previousValue = callback(previousValue, currentCoord, coordIndex, featureIndex, featureSubIndex);
else previousValue = callback(previousValue, currentCoord, coordIndex, featureIndex, multiFeatureIndex, geometryIndex);
}, excludeWrapCoord);

@@ -200,5 +207,4 @@ return previousValue;

* @callback propEachCallback
* @param {Object} currentProperties The current properties being processed.
* @param {number} featureIndex The index of the current element being processed in the
* array.Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
* @param {Object} currentProperties The current Properties being processed.
* @param {number} featureIndex The current index of the Feature being processed.
*/

@@ -210,3 +216,3 @@

* @name propEach
* @param {(FeatureCollection|Feature)} geojson any GeoJSON object
* @param {FeatureCollection|Feature} geojson any GeoJSON object
* @param {Function} callback a method that takes (currentProperties, featureIndex)

@@ -256,5 +262,4 @@ * @example

* of the callback, or initialValue, if supplied.
* @param {*} currentProperties The current properties being processed.
* @param {number} featureIndex The index of the current element being processed in the
* array.Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
* @param {*} currentProperties The current Properties being processed.
* @param {number} featureIndex The current index of the Feature being processed.
*/

@@ -268,3 +273,3 @@

* @name propReduce
* @param {(FeatureCollection|Feature)} geojson any GeoJSON object
* @param {FeatureCollection|Feature} geojson any GeoJSON object
* @param {Function} callback a method that takes (previousValue, currentProperties, featureIndex)

@@ -299,5 +304,4 @@ * @param {*} [initialValue] Value to use as the first argument to the first call of the callback.

* @callback featureEachCallback
* @param {Feature<any>} currentFeature The current feature being processed.
* @param {number} featureIndex The index of the current element being processed in the
* array.Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
* @param {Feature<any>} currentFeature The current Feature being processed.
* @param {number} featureIndex The current index of the Feature being processed.
*/

@@ -310,3 +314,3 @@

* @name featureEach
* @param {(FeatureCollection|Feature|Geometry)} geojson any GeoJSON object
* @param {FeatureCollection|Feature|Geometry} geojson any GeoJSON object
* @param {Function} callback a method that takes (currentFeature, featureIndex)

@@ -352,4 +356,3 @@ * @example

* @param {Feature} currentFeature The current Feature being processed.
* @param {number} featureIndex The index of the current element being processed in the
* array.Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
* @param {number} featureIndex The current index of the Feature being processed.
*/

@@ -361,3 +364,3 @@

* @name featureReduce
* @param {(FeatureCollection|Feature|Geometry)} geojson any GeoJSON object
* @param {FeatureCollection|Feature|Geometry} geojson any GeoJSON object
* @param {Function} callback a method that takes (previousValue, currentFeature, featureIndex)

@@ -392,3 +395,3 @@ * @param {*} [initialValue] Value to use as the first argument to the first call of the callback.

* @name coordAll
* @param {(FeatureCollection|Feature|Geometry)} geojson any GeoJSON object
* @param {FeatureCollection|Feature|Geometry} geojson any GeoJSON object
* @returns {Array<Array<number>>} coordinate position array

@@ -416,8 +419,7 @@ * @example

* @callback geomEachCallback
* @param {Geometry} currentGeometry The current geometry being processed.
* @param {number} featureIndex The index of the current element being processed in the
* array. Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
* @param {Object} featureProperties The current feature properties being processed.
* @param {Array<number>} featureBBox The current feature BBox being processed.
* @param {number|string} featureId The current feature Id being processed.
* @param {Geometry} currentGeometry The current Geometry being processed.
* @param {number} featureIndex The current index of the Feature being processed.
* @param {Object} featureProperties The current Feature Properties being processed.
* @param {Array<number>} featureBBox The current Feature BBox being processed.
* @param {number|string} featureId The current Feature Id being processed.
*/

@@ -429,4 +431,4 @@

* @name geomEach
* @param {(FeatureCollection|Feature|Geometry)} geojson any GeoJSON object
* @param {Function} callback a method that takes (currentGeometry, featureIndex, currentProperties)
* @param {FeatureCollection|Feature|Geometry} geojson any GeoJSON object
* @param {Function} callback a method that takes (currentGeometry, featureIndex, featureProperties, featureBBox, featureId)
* @example

@@ -438,6 +440,8 @@ * var features = turf.featureCollection([

*
* turf.geomEach(features, function (currentGeometry, featureIndex, currentProperties) {
* turf.geomEach(features, function (currentGeometry, featureIndex, featureProperties, featureBBox, featureId) {
* //=currentGeometry
* //=featureIndex
* //=currentProperties
* //=featureProperties
* //=featureBBox
* //=featureId
* });

@@ -533,6 +537,7 @@ */

* of the callback, or initialValue, if supplied.
* @param {Geometry} currentGeometry The current Feature being processed.
* @param {number} currentIndex The index of the current element being processed in the
* array.Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
* @param {Object} currentProperties The current feature properties being processed.
* @param {Geometry} currentGeometry The current Geometry being processed.
* @param {number} featureIndex The current index of the Feature being processed.
* @param {Object} featureProperties The current Feature Properties being processed.
* @param {Array<number>} featureBBox The current Feature BBox being processed.
* @param {number|string} featureId The current Feature Id being processed.
*/

@@ -544,4 +549,4 @@

* @name geomReduce
* @param {(FeatureCollection|Feature|Geometry)} geojson any GeoJSON object
* @param {Function} callback a method that takes (previousValue, currentGeometry, featureIndex, currentProperties)
* @param {FeatureCollection|Feature|Geometry} geojson any GeoJSON object
* @param {Function} callback a method that takes (previousValue, currentGeometry, featureIndex, featureProperties, featureBBox, featureId)
* @param {*} [initialValue] Value to use as the first argument to the first call of the callback.

@@ -555,7 +560,9 @@ * @returns {*} The value that results from the reduction.

*
* turf.geomReduce(features, function (previousValue, currentGeometry, featureIndex, currentProperties) {
* turf.geomReduce(features, function (previousValue, currentGeometry, featureIndex, featureProperties, featureBBox, featureId) {
* //=previousValue
* //=currentGeometry
* //=featureIndex
* //=currentProperties
* //=featureProperties
* //=featureBBox
* //=featureId
* return currentGeometry

@@ -566,5 +573,5 @@ * });

var previousValue = initialValue;
geomEach(geojson, function (currentGeometry, currentIndex, currentProperties) {
if (currentIndex === 0 && initialValue === undefined) previousValue = currentGeometry;
else previousValue = callback(previousValue, currentGeometry, currentIndex, currentProperties);
geomEach(geojson, function (currentGeometry, featureIndex, featureProperties, featureBBox, featureId) {
if (featureIndex === 0 && initialValue === undefined) previousValue = currentGeometry;
else previousValue = callback(previousValue, currentGeometry, featureIndex, featureProperties, featureBBox, featureId);
});

@@ -579,6 +586,4 @@ return previousValue;

* @param {Feature} currentFeature The current flattened feature being processed.
* @param {number} featureIndex The index of the current element being processed in the
* array. Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
* @param {number} featureSubIndex The subindex of the current element being processed in the
* array. Starts at index 0 and increases if the flattened feature was a multi-geometry.
* @param {number} featureIndex The current index of the Feature being processed.
* @param {number} multiFeatureIndex The current index of the Multi-Feature being processed.
*/

@@ -591,4 +596,4 @@

* @name flattenEach
* @param {(FeatureCollection|Feature|Geometry)} geojson any GeoJSON object
* @param {Function} callback a method that takes (currentFeature, featureIndex, featureSubIndex)
* @param {FeatureCollection|Feature|Geometry} geojson any GeoJSON object
* @param {Function} callback a method that takes (currentFeature, featureIndex, multiFeatureIndex)
* @example

@@ -600,6 +605,6 @@ * var features = turf.featureCollection([

*
* turf.flattenEach(features, function (currentFeature, featureIndex, featureSubIndex) {
* turf.flattenEach(features, function (currentFeature, featureIndex, multiFeatureIndex) {
* //=currentFeature
* //=featureIndex
* //=featureSubIndex
* //=multiFeatureIndex
* });

@@ -616,3 +621,3 @@ */

case 'Polygon':
callback(feature(geometry, properties, bbox, id), featureIndex, 0);
callback(feature(geometry, properties, {bbox, id}), featureIndex, 0);
return;

@@ -636,3 +641,3 @@ }

geometry.coordinates.forEach(function (coordinate, featureSubIndex) {
geometry.coordinates.forEach(function (coordinate, multiFeatureIndex) {
var geom = {

@@ -642,3 +647,3 @@ type: geomType,

};
callback(feature(geom, properties), featureIndex, featureSubIndex);
callback(feature(geom, properties), featureIndex, multiFeatureIndex);
});

@@ -667,6 +672,4 @@

* @param {Feature} currentFeature The current Feature being processed.
* @param {number} featureIndex The index of the current element being processed in the
* array.Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
* @param {number} featureSubIndex The subindex of the current element being processed in the
* array. Starts at index 0 and increases if the flattened feature was a multi-geometry.
* @param {number} featureIndex The current index of the Feature being processed.
* @param {number} multiFeatureIndex The current index of the Multi-Feature being processed.
*/

@@ -678,4 +681,4 @@

* @name flattenReduce
* @param {(FeatureCollection|Feature|Geometry)} geojson any GeoJSON object
* @param {Function} callback a method that takes (previousValue, currentFeature, featureIndex, featureSubIndex)
* @param {FeatureCollection|Feature|Geometry} geojson any GeoJSON object
* @param {Function} callback a method that takes (previousValue, currentFeature, featureIndex, multiFeatureIndex)
* @param {*} [initialValue] Value to use as the first argument to the first call of the callback.

@@ -689,7 +692,7 @@ * @returns {*} The value that results from the reduction.

*
* turf.flattenReduce(features, function (previousValue, currentFeature, featureIndex, featureSubIndex) {
* turf.flattenReduce(features, function (previousValue, currentFeature, featureIndex, multiFeatureIndex) {
* //=previousValue
* //=currentFeature
* //=featureIndex
* //=featureSubIndex
* //=multiFeatureIndex
* return currentFeature

@@ -700,5 +703,5 @@ * });

var previousValue = initialValue;
flattenEach(geojson, function (currentFeature, featureIndex, featureSubIndex) {
if (featureIndex === 0 && featureSubIndex === 0 && initialValue === undefined) previousValue = currentFeature;
else previousValue = callback(previousValue, currentFeature, featureIndex, featureSubIndex);
flattenEach(geojson, function (currentFeature, featureIndex, multiFeatureIndex) {
if (featureIndex === 0 && multiFeatureIndex === 0 && initialValue === undefined) previousValue = currentFeature;
else previousValue = callback(previousValue, currentFeature, featureIndex, multiFeatureIndex);
});

@@ -712,6 +715,7 @@ return previousValue;

* @callback segmentEachCallback
* @param {Feature<LineString>} currentSegment The current segment being processed.
* @param {number} featureIndex The featureIndex currently being processed, starts at index 0.
* @param {number} featureSubIndex The featureSubIndex currently being processed, starts at index 0.
* @param {number} segmentIndex The segmentIndex currently being processed, starts at index 0.
* @param {Feature<LineString>} currentSegment The current Segment being processed.
* @param {number} featureIndex The current index of the Feature being processed.
* @param {number} multiFeatureIndex The current index of the Multi-Feature being processed.
* @param {number} geometryIndex The current index of the Geometry being processed.
* @param {number} segmentIndex The current index of the Segment being processed.
* @returns {void}

@@ -724,4 +728,4 @@ */

*
* @param {(FeatureCollection|Feature|Geometry)} geojson any GeoJSON
* @param {Function} callback a method that takes (currentSegment, featureIndex, featureSubIndex)
* @param {FeatureCollection|Feature|Geometry} geojson any GeoJSON
* @param {Function} callback a method that takes (currentSegment, featureIndex, multiFeatureIndex, geometryIndex, segmentIndex)
* @returns {void}

@@ -732,7 +736,8 @@ * @example

* // Iterate over GeoJSON by 2-vertex segments
* turf.segmentEach(polygon, function (currentSegment, featureIndex, featureSubIndex, segmentIndex) {
* //= currentSegment
* //= featureIndex
* //= featureSubIndex
* //= segmentIndex
* turf.segmentEach(polygon, function (currentSegment, featureIndex, multiFeatureIndex, geometryIndex, segmentIndex) {
* //=currentSegment
* //=featureIndex
* //=multiFeatureIndex
* //=geometryIndex
* //=segmentIndex
* });

@@ -747,3 +752,3 @@ *

export function segmentEach(geojson, callback) {
flattenEach(geojson, function (feature, featureIndex, featureSubIndex) {
flattenEach(geojson, function (feature, featureIndex, multiFeatureIndex) {
var segmentIndex = 0;

@@ -758,5 +763,5 @@

// Generate 2-vertex line segments
coordReduce(feature, function (previousCoords, currentCoord) {
coordReduce(feature, function (previousCoords, currentCoord, coordIndex, featureIndexCoord, mutliPartIndexCoord, geometryIndex) {
var currentSegment = lineString([previousCoords, currentCoord], feature.properties);
callback(currentSegment, featureIndex, featureSubIndex, segmentIndex);
callback(currentSegment, featureIndex, multiFeatureIndex, geometryIndex, segmentIndex);
segmentIndex++;

@@ -783,8 +788,9 @@ return currentCoord;

* @callback segmentReduceCallback
* @param {*} [previousValue] The accumulated value previously returned in the last invocation
* @param {*} previousValue The accumulated value previously returned in the last invocation
* of the callback, or initialValue, if supplied.
* @param {Feature<LineString>} [currentSegment] The current segment being processed.
* @param {number} featureIndex The featureIndex currently being processed, starts at index 0.
* @param {number} featureSubIndex The featureSubIndex currently being processed, starts at index 0.
* @param {number} segmentIndex The segmentIndex currently being processed, starts at index 0.
* @param {Feature<LineString>} currentSegment The current Segment being processed.
* @param {number} featureIndex The current index of the Feature being processed.
* @param {number} multiFeatureIndex The current index of the Multi-Feature being processed.
* @param {number} geometryIndex The current index of the Geometry being processed.
* @param {number} segmentIndex The current index of the Segment being processed.
*/

@@ -796,3 +802,3 @@

*
* @param {(FeatureCollection|Feature|Geometry)} geojson any GeoJSON
* @param {FeatureCollection|Feature|Geometry} geojson any GeoJSON
* @param {Function} callback a method that takes (previousValue, currentSegment, currentIndex)

@@ -805,7 +811,8 @@ * @param {*} [initialValue] Value to use as the first argument to the first call of the callback.

* // Iterate over GeoJSON by 2-vertex segments
* turf.segmentReduce(polygon, function (previousSegment, currentSegment, featureIndex, featureSubIndex, segmentIndex) {
* turf.segmentReduce(polygon, function (previousSegment, currentSegment, featureIndex, multiFeatureIndex, geometryIndex, segmentIndex) {
* //= previousSegment
* //= currentSegment
* //= featureIndex
* //= featureSubIndex
* //= multiFeatureIndex
* //= geometryIndex
* //= segmentInex

@@ -825,5 +832,5 @@ * return currentSegment

var started = false;
segmentEach(geojson, function (currentSegment, featureIndex, featureSubIndex, segmentIndex) {
segmentEach(geojson, function (currentSegment, featureIndex, multiFeatureIndex, geometryIndex, segmentIndex) {
if (started === false && initialValue === undefined) previousValue = currentSegment;
else previousValue = callback(previousValue, currentSegment, featureIndex, featureSubIndex, segmentIndex);
else previousValue = callback(previousValue, currentSegment, featureIndex, multiFeatureIndex, geometryIndex, segmentIndex);
started = true;

@@ -838,6 +845,6 @@ });

* @callback lineEachCallback
* @param {Feature<LineString>} currentLine The current LineString|LinearRing being processed.
* @param {number} featureIndex The feature index of the current element being processed in the array, starts at index 0.
* @param {number} featureSubIndex The feature sub-index of the current line being processed at index 0
* @param {number} lineIndex The current line being processed at index 0
* @param {Feature<LineString>} currentLine The current LineString|LinearRing being processed
* @param {number} featureIndex The current index of the Feature being processed
* @param {number} multiFeatureIndex The current index of the Multi-Feature being processed
* @param {number} geometryIndex The current index of the Geometry being processed
*/

@@ -851,3 +858,3 @@

* @param {Geometry|Feature<LineString|Polygon|MultiLineString|MultiPolygon>} geojson object
* @param {Function} callback a method that takes (currentLine, featureIndex, featureSubIndex, lineIndex)
* @param {Function} callback a method that takes (currentLine, featureIndex, multiFeatureIndex, geometryIndex)
* @example

@@ -859,7 +866,7 @@ * var multiLine = turf.multiLineString([

*
* turf.lineEach(multiLine, function (currentLine, featureIndex, featureSubIndex, lineIndex) {
* turf.lineEach(multiLine, function (currentLine, featureIndex, multiFeatureIndex, geometryIndex) {
* //=currentLine
* //=featureIndex
* //=featureSubIndex
* //=lineIndex
* //=multiFeatureIndex
* //=geometryIndex
* });

@@ -871,3 +878,3 @@ */

flattenEach(geojson, function (feature, featureIndex, featureSubIndex) {
flattenEach(geojson, function (feature, featureIndex, multiFeatureIndex) {
if (feature.geometry === null) return;

@@ -878,7 +885,7 @@ var type = feature.geometry.type;

case 'LineString':
callback(feature, featureIndex, featureSubIndex, 0);
callback(feature, featureIndex, multiFeatureIndex, 0, 0);
break;
case 'Polygon':
for (var lineIndex = 0; lineIndex < coords.length; lineIndex++) {
callback(lineString(coords[lineIndex], feature.properties), featureIndex, featureSubIndex, lineIndex);
for (var geometryIndex = 0; geometryIndex < coords.length; geometryIndex++) {
callback(lineString(coords[geometryIndex], feature.properties), featureIndex, multiFeatureIndex, geometryIndex);
}

@@ -908,5 +915,5 @@ break;

* @param {Feature<LineString>} currentLine The current LineString|LinearRing being processed.
* @param {number} featureIndex The feature index of the current element being processed in the array, starts at index 0.
* @param {number} featureSubIndex The feature sub-index of the current line being processed at index 0
* @param {number} lineIndex The current line being processed at index 0
* @param {number} featureIndex The current index of the Feature being processed
* @param {number} multiFeatureIndex The current index of the Multi-Feature being processed
* @param {number} geometryIndex The current index of the Geometry being processed
*/

@@ -919,7 +926,7 @@

* @param {Geometry|Feature<LineString|Polygon|MultiLineString|MultiPolygon>} geojson object
* @param {Function} callback a method that takes (previousValue, currentFeature, featureIndex)
* @param {Function} callback a method that takes (previousValue, currentLine, featureIndex, multiFeatureIndex, geometryIndex)
* @param {*} [initialValue] Value to use as the first argument to the first call of the callback.
* @returns {*} The value that results from the reduction.
* @example
* var mtp = turf.multiPolygon([
* var multiPoly = turf.multiPolygon([
* turf.polygon([[[12,48],[2,41],[24,38],[12,48]], [[9,44],[13,41],[13,45],[9,44]]]),

@@ -929,18 +936,18 @@ * turf.polygon([[[5, 5], [0, 0], [2, 2], [4, 4], [5, 5]]])

*
* turf.lineReduce(mtp, function (previousValue, currentLine, featureIndex, featureSubIndex, lineIndex) {
* turf.lineReduce(multiPoly, function (previousValue, currentLine, featureIndex, multiFeatureIndex, geometryIndex) {
* //=previousValue
* //=currentLine
* //=featureIndex
* //=featureSubIndex
* //=lineIndex
* //=multiFeatureIndex
* //=geometryIndex
* return currentLine
* }, 2);
* });
*/
export function lineReduce(geojson, callback, initialValue) {
var previousValue = initialValue;
lineEach(geojson, function (currentLine, featureIndex, featureSubIndex, lineIndex) {
lineEach(geojson, function (currentLine, featureIndex, multiFeatureIndex, geometryIndex) {
if (featureIndex === 0 && initialValue === undefined) previousValue = currentLine;
else previousValue = callback(previousValue, currentLine, featureIndex, featureSubIndex, lineIndex);
else previousValue = callback(previousValue, currentLine, featureIndex, multiFeatureIndex, geometryIndex);
});
return previousValue;
}

305

main.js

@@ -13,5 +13,5 @@ 'use strict';

* @param {number} coordIndex The current index of the coordinate being processed.
* Starts at index 0.
* @param {number} featureIndex The current index of the feature being processed.
* @param {number} featureSubIndex The current subIndex of the feature being processed.
* @param {number} featureIndex The current index of the Feature being processed.
* @param {number} multiFeatureIndex The current index of the Multi-Feature being processed.
* @param {number} geometryIndex The current index of the Geometry being processed.
*/

@@ -23,4 +23,4 @@

* @name coordEach
* @param {(FeatureCollection|Feature|Geometry)} geojson any GeoJSON object
* @param {Function} callback a method that takes (currentCoord, coordIndex, featureIndex, featureSubIndex)
* @param {FeatureCollection|Feature|Geometry} geojson any GeoJSON object
* @param {Function} callback a method that takes (currentCoord, coordIndex, featureIndex, multiFeatureIndex)
* @param {boolean} [excludeWrapCoord=false] whether or not to include the final coordinate of LinearRings that wraps the ring in its iteration.

@@ -33,7 +33,8 @@ * @example

*
* turf.coordEach(features, function (currentCoord, coordIndex, featureIndex, featureSubIndex) {
* turf.coordEach(features, function (currentCoord, coordIndex, featureIndex, multiFeatureIndex, geometryIndex) {
* //=currentCoord
* //=coordIndex
* //=featureIndex
* //=featureSubIndex
* //=multiFeatureIndex
* //=geometryIndex
* });

@@ -43,4 +44,4 @@ */

// Handles null Geometry -- Skips this GeoJSON
if (geojson === null) return;
var featureIndex, geometryIndex, j, k, l, geometry, stopG, coords,
if (geojson === null) { return; }
var j, k, l, geometry, stopG, coords,
geometryMaybeCollection,

@@ -67,3 +68,3 @@ wrapShrink = 0,

// be required with the normalization approach.
for (featureIndex = 0; featureIndex < stop; featureIndex++) {
for (var featureIndex = 0; featureIndex < stop; featureIndex++) {
geometryMaybeCollection = (isFeatureCollection ? geojson.features[featureIndex].geometry :

@@ -74,9 +75,10 @@ (isFeature ? geojson.geometry : geojson));

for (geometryIndex = 0; geometryIndex < stopG; geometryIndex++) {
var featureSubIndex = 0;
for (var geomIndex = 0; geomIndex < stopG; geomIndex++) {
var multiFeatureIndex = 0;
var geometryIndex = 0;
geometry = isGeometryCollection ?
geometryMaybeCollection.geometries[geometryIndex] : geometryMaybeCollection;
geometryMaybeCollection.geometries[geomIndex] : geometryMaybeCollection;
// Handles null Geometry -- Skips this geometry
if (geometry === null) continue;
if (geometry === null) { continue; }
coords = geometry.coordinates;

@@ -91,5 +93,5 @@ var geomType = geometry.type;

case 'Point':
callback(coords, coordIndex, featureIndex, featureSubIndex);
callback(coords, coordIndex, featureIndex, multiFeatureIndex, geometryIndex);
coordIndex++;
featureSubIndex++;
multiFeatureIndex++;
break;

@@ -99,7 +101,7 @@ case 'LineString':

for (j = 0; j < coords.length; j++) {
callback(coords[j], coordIndex, featureIndex, featureSubIndex);
callback(coords[j], coordIndex, featureIndex, multiFeatureIndex, geometryIndex);
coordIndex++;
if (geomType === 'MultiPoint') featureSubIndex++;
if (geomType === 'MultiPoint') { multiFeatureIndex++; }
}
if (geomType === 'LineString') featureSubIndex++;
if (geomType === 'LineString') { multiFeatureIndex++; }
break;

@@ -110,17 +112,20 @@ case 'Polygon':

for (k = 0; k < coords[j].length - wrapShrink; k++) {
callback(coords[j][k], coordIndex, featureIndex, featureSubIndex);
callback(coords[j][k], coordIndex, featureIndex, multiFeatureIndex, geometryIndex);
coordIndex++;
}
if (geomType === 'MultiLineString') featureSubIndex++;
if (geomType === 'MultiLineString') { multiFeatureIndex++; }
if (geomType === 'Polygon') { geometryIndex++; }
}
if (geomType === 'Polygon') featureSubIndex++;
if (geomType === 'Polygon') { multiFeatureIndex++; }
break;
case 'MultiPolygon':
for (j = 0; j < coords.length; j++) {
for (k = 0; k < coords[j].length; k++)
for (k = 0; k < coords[j].length; k++) {
for (l = 0; l < coords[j][k].length - wrapShrink; l++) {
callback(coords[j][k][l], coordIndex, featureIndex, featureSubIndex);
callback(coords[j][k][l], coordIndex, featureIndex, multiFeatureIndex, geometryIndex);
coordIndex++;
}
featureSubIndex++;
if (geomType === 'Polygon') { geometryIndex++; }
}
multiFeatureIndex++;
}

@@ -130,3 +135,3 @@ break;

for (j = 0; j < geometry.geometries.length; j++)
coordEach(geometry.geometries[j], callback, excludeWrapCoord);
{ coordEach(geometry.geometries[j], callback, excludeWrapCoord); }
break;

@@ -160,4 +165,5 @@ default:

* Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
* @param {number} featureIndex The current index of the feature being processed.
* @param {number} featureSubIndex The current subIndex of the feature being processed.
* @param {number} featureIndex The current index of the Feature being processed.
* @param {number} multiFeatureIndex The current index of the Multi-Feature being processed.
* @param {number} geometryIndex The current index of the Geometry being processed.
*/

@@ -180,3 +186,3 @@

*
* turf.coordReduce(features, function (previousValue, currentCoord, coordIndex, featureIndex, featureSubIndex) {
* turf.coordReduce(features, function (previousValue, currentCoord, coordIndex, featureIndex, multiFeatureIndex, geometryIndex) {
* //=previousValue

@@ -186,3 +192,4 @@ * //=currentCoord

* //=featureIndex
* //=featureSubIndex
* //=multiFeatureIndex
* //=geometryIndex
* return currentCoord;

@@ -193,5 +200,5 @@ * });

var previousValue = initialValue;
coordEach(geojson, function (currentCoord, coordIndex, featureIndex, featureSubIndex) {
if (coordIndex === 0 && initialValue === undefined) previousValue = currentCoord;
else previousValue = callback(previousValue, currentCoord, coordIndex, featureIndex, featureSubIndex);
coordEach(geojson, function (currentCoord, coordIndex, featureIndex, multiFeatureIndex, geometryIndex) {
if (coordIndex === 0 && initialValue === undefined) { previousValue = currentCoord; }
else { previousValue = callback(previousValue, currentCoord, coordIndex, featureIndex, multiFeatureIndex, geometryIndex); }
}, excludeWrapCoord);

@@ -205,5 +212,4 @@ return previousValue;

* @callback propEachCallback
* @param {Object} currentProperties The current properties being processed.
* @param {number} featureIndex The index of the current element being processed in the
* array.Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
* @param {Object} currentProperties The current Properties being processed.
* @param {number} featureIndex The current index of the Feature being processed.
*/

@@ -215,3 +221,3 @@

* @name propEach
* @param {(FeatureCollection|Feature)} geojson any GeoJSON object
* @param {FeatureCollection|Feature} geojson any GeoJSON object
* @param {Function} callback a method that takes (currentProperties, featureIndex)

@@ -261,5 +267,4 @@ * @example

* of the callback, or initialValue, if supplied.
* @param {*} currentProperties The current properties being processed.
* @param {number} featureIndex The index of the current element being processed in the
* array.Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
* @param {*} currentProperties The current Properties being processed.
* @param {number} featureIndex The current index of the Feature being processed.
*/

@@ -273,3 +278,3 @@

* @name propReduce
* @param {(FeatureCollection|Feature)} geojson any GeoJSON object
* @param {FeatureCollection|Feature} geojson any GeoJSON object
* @param {Function} callback a method that takes (previousValue, currentProperties, featureIndex)

@@ -294,4 +299,4 @@ * @param {*} [initialValue] Value to use as the first argument to the first call of the callback.

propEach(geojson, function (currentProperties, featureIndex) {
if (featureIndex === 0 && initialValue === undefined) previousValue = currentProperties;
else previousValue = callback(previousValue, currentProperties, featureIndex);
if (featureIndex === 0 && initialValue === undefined) { previousValue = currentProperties; }
else { previousValue = callback(previousValue, currentProperties, featureIndex); }
});

@@ -305,5 +310,4 @@ return previousValue;

* @callback featureEachCallback
* @param {Feature<any>} currentFeature The current feature being processed.
* @param {number} featureIndex The index of the current element being processed in the
* array.Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
* @param {Feature<any>} currentFeature The current Feature being processed.
* @param {number} featureIndex The current index of the Feature being processed.
*/

@@ -316,3 +320,3 @@

* @name featureEach
* @param {(FeatureCollection|Feature|Geometry)} geojson any GeoJSON object
* @param {FeatureCollection|Feature|Geometry} geojson any GeoJSON object
* @param {Function} callback a method that takes (currentFeature, featureIndex)

@@ -358,4 +362,3 @@ * @example

* @param {Feature} currentFeature The current Feature being processed.
* @param {number} featureIndex The index of the current element being processed in the
* array.Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
* @param {number} featureIndex The current index of the Feature being processed.
*/

@@ -367,3 +370,3 @@

* @name featureReduce
* @param {(FeatureCollection|Feature|Geometry)} geojson any GeoJSON object
* @param {FeatureCollection|Feature|Geometry} geojson any GeoJSON object
* @param {Function} callback a method that takes (previousValue, currentFeature, featureIndex)

@@ -388,4 +391,4 @@ * @param {*} [initialValue] Value to use as the first argument to the first call of the callback.

featureEach(geojson, function (currentFeature, featureIndex) {
if (featureIndex === 0 && initialValue === undefined) previousValue = currentFeature;
else previousValue = callback(previousValue, currentFeature, featureIndex);
if (featureIndex === 0 && initialValue === undefined) { previousValue = currentFeature; }
else { previousValue = callback(previousValue, currentFeature, featureIndex); }
});

@@ -399,3 +402,3 @@ return previousValue;

* @name coordAll
* @param {(FeatureCollection|Feature|Geometry)} geojson any GeoJSON object
* @param {FeatureCollection|Feature|Geometry} geojson any GeoJSON object
* @returns {Array<Array<number>>} coordinate position array

@@ -423,8 +426,7 @@ * @example

* @callback geomEachCallback
* @param {Geometry} currentGeometry The current geometry being processed.
* @param {number} featureIndex The index of the current element being processed in the
* array. Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
* @param {Object} featureProperties The current feature properties being processed.
* @param {Array<number>} featureBBox The current feature BBox being processed.
* @param {number|string} featureId The current feature Id being processed.
* @param {Geometry} currentGeometry The current Geometry being processed.
* @param {number} featureIndex The current index of the Feature being processed.
* @param {Object} featureProperties The current Feature Properties being processed.
* @param {Array<number>} featureBBox The current Feature BBox being processed.
* @param {number|string} featureId The current Feature Id being processed.
*/

@@ -436,4 +438,4 @@

* @name geomEach
* @param {(FeatureCollection|Feature|Geometry)} geojson any GeoJSON object
* @param {Function} callback a method that takes (currentGeometry, featureIndex, currentProperties)
* @param {FeatureCollection|Feature|Geometry} geojson any GeoJSON object
* @param {Function} callback a method that takes (currentGeometry, featureIndex, featureProperties, featureBBox, featureId)
* @example

@@ -445,6 +447,8 @@ * var features = turf.featureCollection([

*
* turf.geomEach(features, function (currentGeometry, featureIndex, currentProperties) {
* turf.geomEach(features, function (currentGeometry, featureIndex, featureProperties, featureBBox, featureId) {
* //=currentGeometry
* //=featureIndex
* //=currentProperties
* //=featureProperties
* //=featureBBox
* //=featureId
* });

@@ -540,6 +544,7 @@ */

* of the callback, or initialValue, if supplied.
* @param {Geometry} currentGeometry The current Feature being processed.
* @param {number} currentIndex The index of the current element being processed in the
* array.Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
* @param {Object} currentProperties The current feature properties being processed.
* @param {Geometry} currentGeometry The current Geometry being processed.
* @param {number} featureIndex The current index of the Feature being processed.
* @param {Object} featureProperties The current Feature Properties being processed.
* @param {Array<number>} featureBBox The current Feature BBox being processed.
* @param {number|string} featureId The current Feature Id being processed.
*/

@@ -551,4 +556,4 @@

* @name geomReduce
* @param {(FeatureCollection|Feature|Geometry)} geojson any GeoJSON object
* @param {Function} callback a method that takes (previousValue, currentGeometry, featureIndex, currentProperties)
* @param {FeatureCollection|Feature|Geometry} geojson any GeoJSON object
* @param {Function} callback a method that takes (previousValue, currentGeometry, featureIndex, featureProperties, featureBBox, featureId)
* @param {*} [initialValue] Value to use as the first argument to the first call of the callback.

@@ -562,7 +567,9 @@ * @returns {*} The value that results from the reduction.

*
* turf.geomReduce(features, function (previousValue, currentGeometry, featureIndex, currentProperties) {
* turf.geomReduce(features, function (previousValue, currentGeometry, featureIndex, featureProperties, featureBBox, featureId) {
* //=previousValue
* //=currentGeometry
* //=featureIndex
* //=currentProperties
* //=featureProperties
* //=featureBBox
* //=featureId
* return currentGeometry

@@ -573,5 +580,5 @@ * });

var previousValue = initialValue;
geomEach(geojson, function (currentGeometry, currentIndex, currentProperties) {
if (currentIndex === 0 && initialValue === undefined) previousValue = currentGeometry;
else previousValue = callback(previousValue, currentGeometry, currentIndex, currentProperties);
geomEach(geojson, function (currentGeometry, featureIndex, featureProperties, featureBBox, featureId) {
if (featureIndex === 0 && initialValue === undefined) { previousValue = currentGeometry; }
else { previousValue = callback(previousValue, currentGeometry, featureIndex, featureProperties, featureBBox, featureId); }
});

@@ -586,6 +593,4 @@ return previousValue;

* @param {Feature} currentFeature The current flattened feature being processed.
* @param {number} featureIndex The index of the current element being processed in the
* array. Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
* @param {number} featureSubIndex The subindex of the current element being processed in the
* array. Starts at index 0 and increases if the flattened feature was a multi-geometry.
* @param {number} featureIndex The current index of the Feature being processed.
* @param {number} multiFeatureIndex The current index of the Multi-Feature being processed.
*/

@@ -598,4 +603,4 @@

* @name flattenEach
* @param {(FeatureCollection|Feature|Geometry)} geojson any GeoJSON object
* @param {Function} callback a method that takes (currentFeature, featureIndex, featureSubIndex)
* @param {FeatureCollection|Feature|Geometry} geojson any GeoJSON object
* @param {Function} callback a method that takes (currentFeature, featureIndex, multiFeatureIndex)
* @example

@@ -607,6 +612,6 @@ * var features = turf.featureCollection([

*
* turf.flattenEach(features, function (currentFeature, featureIndex, featureSubIndex) {
* turf.flattenEach(features, function (currentFeature, featureIndex, multiFeatureIndex) {
* //=currentFeature
* //=featureIndex
* //=featureSubIndex
* //=multiFeatureIndex
* });

@@ -623,3 +628,3 @@ */

case 'Polygon':
callback(helpers.feature(geometry, properties, bbox, id), featureIndex, 0);
callback(helpers.feature(geometry, properties, {bbox: bbox, id: id}), featureIndex, 0);
return;

@@ -643,3 +648,3 @@ }

geometry.coordinates.forEach(function (coordinate, featureSubIndex) {
geometry.coordinates.forEach(function (coordinate, multiFeatureIndex) {
var geom = {

@@ -649,3 +654,3 @@ type: geomType,

};
callback(helpers.feature(geom, properties), featureIndex, featureSubIndex);
callback(helpers.feature(geom, properties), featureIndex, multiFeatureIndex);
});

@@ -674,6 +679,4 @@

* @param {Feature} currentFeature The current Feature being processed.
* @param {number} featureIndex The index of the current element being processed in the
* array.Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
* @param {number} featureSubIndex The subindex of the current element being processed in the
* array. Starts at index 0 and increases if the flattened feature was a multi-geometry.
* @param {number} featureIndex The current index of the Feature being processed.
* @param {number} multiFeatureIndex The current index of the Multi-Feature being processed.
*/

@@ -685,4 +688,4 @@

* @name flattenReduce
* @param {(FeatureCollection|Feature|Geometry)} geojson any GeoJSON object
* @param {Function} callback a method that takes (previousValue, currentFeature, featureIndex, featureSubIndex)
* @param {FeatureCollection|Feature|Geometry} geojson any GeoJSON object
* @param {Function} callback a method that takes (previousValue, currentFeature, featureIndex, multiFeatureIndex)
* @param {*} [initialValue] Value to use as the first argument to the first call of the callback.

@@ -696,7 +699,7 @@ * @returns {*} The value that results from the reduction.

*
* turf.flattenReduce(features, function (previousValue, currentFeature, featureIndex, featureSubIndex) {
* turf.flattenReduce(features, function (previousValue, currentFeature, featureIndex, multiFeatureIndex) {
* //=previousValue
* //=currentFeature
* //=featureIndex
* //=featureSubIndex
* //=multiFeatureIndex
* return currentFeature

@@ -707,5 +710,5 @@ * });

var previousValue = initialValue;
flattenEach(geojson, function (currentFeature, featureIndex, featureSubIndex) {
if (featureIndex === 0 && featureSubIndex === 0 && initialValue === undefined) previousValue = currentFeature;
else previousValue = callback(previousValue, currentFeature, featureIndex, featureSubIndex);
flattenEach(geojson, function (currentFeature, featureIndex, multiFeatureIndex) {
if (featureIndex === 0 && multiFeatureIndex === 0 && initialValue === undefined) { previousValue = currentFeature; }
else { previousValue = callback(previousValue, currentFeature, featureIndex, multiFeatureIndex); }
});

@@ -719,6 +722,7 @@ return previousValue;

* @callback segmentEachCallback
* @param {Feature<LineString>} currentSegment The current segment being processed.
* @param {number} featureIndex The featureIndex currently being processed, starts at index 0.
* @param {number} featureSubIndex The featureSubIndex currently being processed, starts at index 0.
* @param {number} segmentIndex The segmentIndex currently being processed, starts at index 0.
* @param {Feature<LineString>} currentSegment The current Segment being processed.
* @param {number} featureIndex The current index of the Feature being processed.
* @param {number} multiFeatureIndex The current index of the Multi-Feature being processed.
* @param {number} geometryIndex The current index of the Geometry being processed.
* @param {number} segmentIndex The current index of the Segment being processed.
* @returns {void}

@@ -731,4 +735,4 @@ */

*
* @param {(FeatureCollection|Feature|Geometry)} geojson any GeoJSON
* @param {Function} callback a method that takes (currentSegment, featureIndex, featureSubIndex)
* @param {FeatureCollection|Feature|Geometry} geojson any GeoJSON
* @param {Function} callback a method that takes (currentSegment, featureIndex, multiFeatureIndex, geometryIndex, segmentIndex)
* @returns {void}

@@ -739,7 +743,8 @@ * @example

* // Iterate over GeoJSON by 2-vertex segments
* turf.segmentEach(polygon, function (currentSegment, featureIndex, featureSubIndex, segmentIndex) {
* //= currentSegment
* //= featureIndex
* //= featureSubIndex
* //= segmentIndex
* turf.segmentEach(polygon, function (currentSegment, featureIndex, multiFeatureIndex, geometryIndex, segmentIndex) {
* //=currentSegment
* //=featureIndex
* //=multiFeatureIndex
* //=geometryIndex
* //=segmentIndex
* });

@@ -754,15 +759,15 @@ *

function segmentEach(geojson, callback) {
flattenEach(geojson, function (feature$$1, featureIndex, featureSubIndex) {
flattenEach(geojson, function (feature$$1, featureIndex, multiFeatureIndex) {
var segmentIndex = 0;
// Exclude null Geometries
if (!feature$$1.geometry) return;
if (!feature$$1.geometry) { return; }
// (Multi)Point geometries do not contain segments therefore they are ignored during this operation.
var type = feature$$1.geometry.type;
if (type === 'Point' || type === 'MultiPoint') return;
if (type === 'Point' || type === 'MultiPoint') { return; }
// Generate 2-vertex line segments
coordReduce(feature$$1, function (previousCoords, currentCoord) {
coordReduce(feature$$1, function (previousCoords, currentCoord, coordIndex, featureIndexCoord, mutliPartIndexCoord, geometryIndex) {
var currentSegment = helpers.lineString([previousCoords, currentCoord], feature$$1.properties);
callback(currentSegment, featureIndex, featureSubIndex, segmentIndex);
callback(currentSegment, featureIndex, multiFeatureIndex, geometryIndex, segmentIndex);
segmentIndex++;

@@ -789,8 +794,9 @@ return currentCoord;

* @callback segmentReduceCallback
* @param {*} [previousValue] The accumulated value previously returned in the last invocation
* @param {*} previousValue The accumulated value previously returned in the last invocation
* of the callback, or initialValue, if supplied.
* @param {Feature<LineString>} [currentSegment] The current segment being processed.
* @param {number} featureIndex The featureIndex currently being processed, starts at index 0.
* @param {number} featureSubIndex The featureSubIndex currently being processed, starts at index 0.
* @param {number} segmentIndex The segmentIndex currently being processed, starts at index 0.
* @param {Feature<LineString>} currentSegment The current Segment being processed.
* @param {number} featureIndex The current index of the Feature being processed.
* @param {number} multiFeatureIndex The current index of the Multi-Feature being processed.
* @param {number} geometryIndex The current index of the Geometry being processed.
* @param {number} segmentIndex The current index of the Segment being processed.
*/

@@ -802,3 +808,3 @@

*
* @param {(FeatureCollection|Feature|Geometry)} geojson any GeoJSON
* @param {FeatureCollection|Feature|Geometry} geojson any GeoJSON
* @param {Function} callback a method that takes (previousValue, currentSegment, currentIndex)

@@ -811,7 +817,8 @@ * @param {*} [initialValue] Value to use as the first argument to the first call of the callback.

* // Iterate over GeoJSON by 2-vertex segments
* turf.segmentReduce(polygon, function (previousSegment, currentSegment, featureIndex, featureSubIndex, segmentIndex) {
* turf.segmentReduce(polygon, function (previousSegment, currentSegment, featureIndex, multiFeatureIndex, geometryIndex, segmentIndex) {
* //= previousSegment
* //= currentSegment
* //= featureIndex
* //= featureSubIndex
* //= multiFeatureIndex
* //= geometryIndex
* //= segmentInex

@@ -831,5 +838,5 @@ * return currentSegment

var started = false;
segmentEach(geojson, function (currentSegment, featureIndex, featureSubIndex, segmentIndex) {
if (started === false && initialValue === undefined) previousValue = currentSegment;
else previousValue = callback(previousValue, currentSegment, featureIndex, featureSubIndex, segmentIndex);
segmentEach(geojson, function (currentSegment, featureIndex, multiFeatureIndex, geometryIndex, segmentIndex) {
if (started === false && initialValue === undefined) { previousValue = currentSegment; }
else { previousValue = callback(previousValue, currentSegment, featureIndex, multiFeatureIndex, geometryIndex, segmentIndex); }
started = true;

@@ -844,6 +851,6 @@ });

* @callback lineEachCallback
* @param {Feature<LineString>} currentLine The current LineString|LinearRing being processed.
* @param {number} featureIndex The feature index of the current element being processed in the array, starts at index 0.
* @param {number} featureSubIndex The feature sub-index of the current line being processed at index 0
* @param {number} lineIndex The current line being processed at index 0
* @param {Feature<LineString>} currentLine The current LineString|LinearRing being processed
* @param {number} featureIndex The current index of the Feature being processed
* @param {number} multiFeatureIndex The current index of the Multi-Feature being processed
* @param {number} geometryIndex The current index of the Geometry being processed
*/

@@ -857,3 +864,3 @@

* @param {Geometry|Feature<LineString|Polygon|MultiLineString|MultiPolygon>} geojson object
* @param {Function} callback a method that takes (currentLine, featureIndex, featureSubIndex, lineIndex)
* @param {Function} callback a method that takes (currentLine, featureIndex, multiFeatureIndex, geometryIndex)
* @example

@@ -865,7 +872,7 @@ * var multiLine = turf.multiLineString([

*
* turf.lineEach(multiLine, function (currentLine, featureIndex, featureSubIndex, lineIndex) {
* turf.lineEach(multiLine, function (currentLine, featureIndex, multiFeatureIndex, geometryIndex) {
* //=currentLine
* //=featureIndex
* //=featureSubIndex
* //=lineIndex
* //=multiFeatureIndex
* //=geometryIndex
* });

@@ -875,6 +882,6 @@ */

// validation
if (!geojson) throw new Error('geojson is required');
if (!geojson) { throw new Error('geojson is required'); }
flattenEach(geojson, function (feature$$1, featureIndex, featureSubIndex) {
if (feature$$1.geometry === null) return;
flattenEach(geojson, function (feature$$1, featureIndex, multiFeatureIndex) {
if (feature$$1.geometry === null) { return; }
var type = feature$$1.geometry.type;

@@ -884,7 +891,7 @@ var coords = feature$$1.geometry.coordinates;

case 'LineString':
callback(feature$$1, featureIndex, featureSubIndex, 0);
callback(feature$$1, featureIndex, multiFeatureIndex, 0, 0);
break;
case 'Polygon':
for (var lineIndex = 0; lineIndex < coords.length; lineIndex++) {
callback(helpers.lineString(coords[lineIndex], feature$$1.properties), featureIndex, featureSubIndex, lineIndex);
for (var geometryIndex = 0; geometryIndex < coords.length; geometryIndex++) {
callback(helpers.lineString(coords[geometryIndex], feature$$1.properties), featureIndex, multiFeatureIndex, geometryIndex);
}

@@ -914,5 +921,5 @@ break;

* @param {Feature<LineString>} currentLine The current LineString|LinearRing being processed.
* @param {number} featureIndex The feature index of the current element being processed in the array, starts at index 0.
* @param {number} featureSubIndex The feature sub-index of the current line being processed at index 0
* @param {number} lineIndex The current line being processed at index 0
* @param {number} featureIndex The current index of the Feature being processed
* @param {number} multiFeatureIndex The current index of the Multi-Feature being processed
* @param {number} geometryIndex The current index of the Geometry being processed
*/

@@ -925,7 +932,7 @@

* @param {Geometry|Feature<LineString|Polygon|MultiLineString|MultiPolygon>} geojson object
* @param {Function} callback a method that takes (previousValue, currentFeature, featureIndex)
* @param {Function} callback a method that takes (previousValue, currentLine, featureIndex, multiFeatureIndex, geometryIndex)
* @param {*} [initialValue] Value to use as the first argument to the first call of the callback.
* @returns {*} The value that results from the reduction.
* @example
* var mtp = turf.multiPolygon([
* var multiPoly = turf.multiPolygon([
* turf.polygon([[[12,48],[2,41],[24,38],[12,48]], [[9,44],[13,41],[13,45],[9,44]]]),

@@ -935,16 +942,16 @@ * turf.polygon([[[5, 5], [0, 0], [2, 2], [4, 4], [5, 5]]])

*
* turf.lineReduce(mtp, function (previousValue, currentLine, featureIndex, featureSubIndex, lineIndex) {
* turf.lineReduce(multiPoly, function (previousValue, currentLine, featureIndex, multiFeatureIndex, geometryIndex) {
* //=previousValue
* //=currentLine
* //=featureIndex
* //=featureSubIndex
* //=lineIndex
* //=multiFeatureIndex
* //=geometryIndex
* return currentLine
* }, 2);
* });
*/
function lineReduce(geojson, callback, initialValue) {
var previousValue = initialValue;
lineEach(geojson, function (currentLine, featureIndex, featureSubIndex, lineIndex) {
if (featureIndex === 0 && initialValue === undefined) previousValue = currentLine;
else previousValue = callback(previousValue, currentLine, featureIndex, featureSubIndex, lineIndex);
lineEach(geojson, function (currentLine, featureIndex, multiFeatureIndex, geometryIndex) {
if (featureIndex === 0 && initialValue === undefined) { previousValue = currentLine; }
else { previousValue = callback(previousValue, currentLine, featureIndex, multiFeatureIndex, geometryIndex); }
});

@@ -951,0 +958,0 @@ return previousValue;

18

package.json
{
"name": "@turf/meta",
"version": "5.0.4",
"version": "5.1.0",
"description": "turf meta module",
"main": "main",
"module": "index",
"jsnext:main": "index",
"main": "main.js",
"module": "main.mjs",
"types": "index.d.ts",

@@ -12,3 +11,4 @@ "files": [

"index.d.ts",
"main.js"
"main.js",
"main.mjs"
],

@@ -18,3 +18,4 @@ "scripts": {

"test": "node -r @std/esm test.js",
"bench": "node -r @std/esm bench.js"
"bench": "node -r @std/esm bench.js",
"docs": "node ../../scripts/generate-readmes"
},

@@ -60,9 +61,10 @@ "repository": {

"@std/esm": "*",
"@turf/random": "^5.0.4",
"@turf/random": "^5.1.0",
"benchmark": "*",
"rollup": "*",
"rollup-plugin-buble": "*",
"tape": "*"
},
"dependencies": {
"@turf/helpers": "^5.0.4"
"@turf/helpers": "^5.1.0"
},

@@ -69,0 +71,0 @@ "@std/esm": {

211

README.md

@@ -15,5 +15,5 @@ # @turf/meta

- `coordIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The current index of the coordinate being processed.
Starts at index 0.
- `featureIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The current index of the feature being processed.
- `featureSubIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The current subIndex of the feature being processed.
- `featureIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The current index of the Feature being processed.
- `multiFeatureIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The current index of the Multi-Feature being processed.
- `geometryIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The current index of the Geometry being processed.

@@ -26,4 +26,4 @@ ## coordEach

- `geojson` **([FeatureCollection](http://geojson.org/geojson-spec.html#feature-collection-objects) \| [Feature](http://geojson.org/geojson-spec.html#feature-objects) \| [Geometry](http://geojson.org/geojson-spec.html#geometry))** any GeoJSON object
- `callback` **[Function](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/function)** a method that takes (currentCoord, coordIndex, featureIndex, featureSubIndex)
- `geojson` **([FeatureCollection](https://tools.ietf.org/html/rfc7946#section-3.3) \| [Feature](https://tools.ietf.org/html/rfc7946#section-3.2) \| [Geometry](https://tools.ietf.org/html/rfc7946#section-3.1))** any GeoJSON object
- `callback` **[Function](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/function)** a method that takes (currentCoord, coordIndex, featureIndex, multiFeatureIndex)
- `excludeWrapCoord` **[boolean](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Boolean)** whether or not to include the final coordinate of LinearRings that wraps the ring in its iteration. (optional, default `false`)

@@ -39,7 +39,8 @@

turf.coordEach(features, function (currentCoord, coordIndex, featureIndex, featureSubIndex) {
turf.coordEach(features, function (currentCoord, coordIndex, featureIndex, multiFeatureIndex, geometryIndex) {
//=currentCoord
//=coordIndex
//=featureIndex
//=featureSubIndex
//=multiFeatureIndex
//=geometryIndex
});

@@ -54,3 +55,3 @@ ```

- `geojson` **([FeatureCollection](http://geojson.org/geojson-spec.html#feature-collection-objects) \| [Geometry](http://geojson.org/geojson-spec.html#geometry) \| [Feature](http://geojson.org/geojson-spec.html#feature-objects))** any GeoJSON object
- `geojson` **([FeatureCollection](https://tools.ietf.org/html/rfc7946#section-3.3) \| [Geometry](https://tools.ietf.org/html/rfc7946#section-3.1) \| [Feature](https://tools.ietf.org/html/rfc7946#section-3.2))** any GeoJSON object
- `callback` **[Function](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/function)** a method that takes (previousValue, currentCoord, coordIndex)

@@ -68,3 +69,3 @@ - `initialValue` **any?** Value to use as the first argument to the first call of the callback.

turf.coordReduce(features, function (previousValue, currentCoord, coordIndex, featureIndex, featureSubIndex) {
turf.coordReduce(features, function (previousValue, currentCoord, coordIndex, featureIndex, multiFeatureIndex, geometryIndex) {
//=previousValue

@@ -74,3 +75,4 @@ //=currentCoord

//=featureIndex
//=featureSubIndex
//=multiFeatureIndex
//=geometryIndex
return currentCoord;

@@ -108,4 +110,5 @@ });

Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
- `featureIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The current index of the feature being processed.
- `featureSubIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The current subIndex of the feature being processed.
- `featureIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The current index of the Feature being processed.
- `multiFeatureIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The current index of the Multi-Feature being processed.
- `geometryIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The current index of the Geometry being processed.

@@ -118,3 +121,3 @@ ## propEach

- `geojson` **([FeatureCollection](http://geojson.org/geojson-spec.html#feature-collection-objects) \| [Feature](http://geojson.org/geojson-spec.html#feature-objects))** any GeoJSON object
- `geojson` **([FeatureCollection](https://tools.ietf.org/html/rfc7946#section-3.3) \| [Feature](https://tools.ietf.org/html/rfc7946#section-3.2))** any GeoJSON object
- `callback` **[Function](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/function)** a method that takes (currentProperties, featureIndex)

@@ -144,5 +147,4 @@

- `currentProperties` **[Object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object)** The current properties being processed.
- `featureIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The index of the current element being processed in the
array.Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
- `currentProperties` **[Object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object)** The current Properties being processed.
- `featureIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The current index of the Feature being processed.

@@ -157,3 +159,3 @@ ## propReduce

- `geojson` **([FeatureCollection](http://geojson.org/geojson-spec.html#feature-collection-objects) \| [Feature](http://geojson.org/geojson-spec.html#feature-objects))** any GeoJSON object
- `geojson` **([FeatureCollection](https://tools.ietf.org/html/rfc7946#section-3.3) \| [Feature](https://tools.ietf.org/html/rfc7946#section-3.2))** any GeoJSON object
- `callback` **[Function](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/function)** a method that takes (previousValue, currentProperties, featureIndex)

@@ -203,5 +205,4 @@ - `initialValue` **any?** Value to use as the first argument to the first call of the callback.

of the callback, or initialValue, if supplied.
- `currentProperties` **any** The current properties being processed.
- `featureIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The index of the current element being processed in the
array.Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
- `currentProperties` **any** The current Properties being processed.
- `featureIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The current index of the Feature being processed.

@@ -215,3 +216,3 @@ ## featureEach

- `geojson` **([FeatureCollection](http://geojson.org/geojson-spec.html#feature-collection-objects) \| [Feature](http://geojson.org/geojson-spec.html#feature-objects) \| [Geometry](http://geojson.org/geojson-spec.html#geometry))** any GeoJSON object
- `geojson` **([FeatureCollection](https://tools.ietf.org/html/rfc7946#section-3.3) \| [Feature](https://tools.ietf.org/html/rfc7946#section-3.2) \| [Geometry](https://tools.ietf.org/html/rfc7946#section-3.1))** any GeoJSON object
- `callback` **[Function](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/function)** a method that takes (currentFeature, featureIndex)

@@ -241,5 +242,4 @@

- `currentFeature` **[Feature](http://geojson.org/geojson-spec.html#feature-objects)&lt;any>** The current feature being processed.
- `featureIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The index of the current element being processed in the
array.Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
- `currentFeature` **[Feature](https://tools.ietf.org/html/rfc7946#section-3.2)&lt;any>** The current Feature being processed.
- `featureIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The current index of the Feature being processed.

@@ -269,5 +269,4 @@ ## featureReduceCallback

of the callback, or initialValue, if supplied.
- `currentFeature` **[Feature](http://geojson.org/geojson-spec.html#feature-objects)** The current Feature being processed.
- `featureIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The index of the current element being processed in the
array.Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
- `currentFeature` **[Feature](https://tools.ietf.org/html/rfc7946#section-3.2)** The current Feature being processed.
- `featureIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The current index of the Feature being processed.

@@ -280,3 +279,3 @@ ## featureReduce

- `geojson` **([FeatureCollection](http://geojson.org/geojson-spec.html#feature-collection-objects) \| [Feature](http://geojson.org/geojson-spec.html#feature-objects) \| [Geometry](http://geojson.org/geojson-spec.html#geometry))** any GeoJSON object
- `geojson` **([FeatureCollection](https://tools.ietf.org/html/rfc7946#section-3.3) \| [Feature](https://tools.ietf.org/html/rfc7946#section-3.2) \| [Geometry](https://tools.ietf.org/html/rfc7946#section-3.1))** any GeoJSON object
- `callback` **[Function](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/function)** a method that takes (previousValue, currentFeature, featureIndex)

@@ -309,3 +308,3 @@ - `initialValue` **any?** Value to use as the first argument to the first call of the callback.

- `geojson` **([FeatureCollection](http://geojson.org/geojson-spec.html#feature-collection-objects) \| [Feature](http://geojson.org/geojson-spec.html#feature-objects) \| [Geometry](http://geojson.org/geojson-spec.html#geometry))** any GeoJSON object
- `geojson` **([FeatureCollection](https://tools.ietf.org/html/rfc7946#section-3.3) \| [Feature](https://tools.ietf.org/html/rfc7946#section-3.2) \| [Geometry](https://tools.ietf.org/html/rfc7946#section-3.1))** any GeoJSON object

@@ -334,8 +333,7 @@ **Examples**

- `currentGeometry` **[Geometry](http://geojson.org/geojson-spec.html#geometry)** The current geometry being processed.
- `featureIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The index of the current element being processed in the
array. Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
- `featureProperties` **[Object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object)** The current feature properties being processed.
- `featureBBox` **[Array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array)&lt;[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)>** The current feature BBox being processed.
- `featureId` **([number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number) \| [string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String))** The current feature Id being processed.
- `currentGeometry` **[Geometry](https://tools.ietf.org/html/rfc7946#section-3.1)** The current Geometry being processed.
- `featureIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The current index of the Feature being processed.
- `featureProperties` **[Object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object)** The current Feature Properties being processed.
- `featureBBox` **[Array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array)&lt;[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)>** The current Feature BBox being processed.
- `featureId` **([number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number) \| [string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String))** The current Feature Id being processed.

@@ -348,4 +346,4 @@ ## geomEach

- `geojson` **([FeatureCollection](http://geojson.org/geojson-spec.html#feature-collection-objects) \| [Feature](http://geojson.org/geojson-spec.html#feature-objects) \| [Geometry](http://geojson.org/geojson-spec.html#geometry))** any GeoJSON object
- `callback` **[Function](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/function)** a method that takes (currentGeometry, featureIndex, currentProperties)
- `geojson` **([FeatureCollection](https://tools.ietf.org/html/rfc7946#section-3.3) \| [Feature](https://tools.ietf.org/html/rfc7946#section-3.2) \| [Geometry](https://tools.ietf.org/html/rfc7946#section-3.1))** any GeoJSON object
- `callback` **[Function](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/function)** a method that takes (currentGeometry, featureIndex, featureProperties, featureBBox, featureId)

@@ -360,6 +358,8 @@ **Examples**

turf.geomEach(features, function (currentGeometry, featureIndex, currentProperties) {
turf.geomEach(features, function (currentGeometry, featureIndex, featureProperties, featureBBox, featureId) {
//=currentGeometry
//=featureIndex
//=currentProperties
//=featureProperties
//=featureBBox
//=featureId
});

@@ -391,6 +391,7 @@ ```

of the callback, or initialValue, if supplied.
- `currentGeometry` **[Geometry](http://geojson.org/geojson-spec.html#geometry)** The current Feature being processed.
- `currentIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The index of the current element being processed in the
array.Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
- `currentProperties` **[Object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object)** The current feature properties being processed.
- `currentGeometry` **[Geometry](https://tools.ietf.org/html/rfc7946#section-3.1)** The current Geometry being processed.
- `featureIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The current index of the Feature being processed.
- `featureProperties` **[Object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object)** The current Feature Properties being processed.
- `featureBBox` **[Array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array)&lt;[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)>** The current Feature BBox being processed.
- `featureId` **([number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number) \| [string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String))** The current Feature Id being processed.

@@ -403,4 +404,4 @@ ## geomReduce

- `geojson` **([FeatureCollection](http://geojson.org/geojson-spec.html#feature-collection-objects) \| [Feature](http://geojson.org/geojson-spec.html#feature-objects) \| [Geometry](http://geojson.org/geojson-spec.html#geometry))** any GeoJSON object
- `callback` **[Function](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/function)** a method that takes (previousValue, currentGeometry, featureIndex, currentProperties)
- `geojson` **([FeatureCollection](https://tools.ietf.org/html/rfc7946#section-3.3) \| [Feature](https://tools.ietf.org/html/rfc7946#section-3.2) \| [Geometry](https://tools.ietf.org/html/rfc7946#section-3.1))** any GeoJSON object
- `callback` **[Function](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/function)** a method that takes (previousValue, currentGeometry, featureIndex, featureProperties, featureBBox, featureId)
- `initialValue` **any?** Value to use as the first argument to the first call of the callback.

@@ -416,7 +417,9 @@

turf.geomReduce(features, function (previousValue, currentGeometry, featureIndex, currentProperties) {
turf.geomReduce(features, function (previousValue, currentGeometry, featureIndex, featureProperties, featureBBox, featureId) {
//=previousValue
//=currentGeometry
//=featureIndex
//=currentProperties
//=featureProperties
//=featureBBox
//=featureId
return currentGeometry

@@ -436,7 +439,5 @@ });

- `currentFeature` **[Feature](http://geojson.org/geojson-spec.html#feature-objects)** The current flattened feature being processed.
- `featureIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The index of the current element being processed in the
array. Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
- `featureSubIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The subindex of the current element being processed in the
array. Starts at index 0 and increases if the flattened feature was a multi-geometry.
- `currentFeature` **[Feature](https://tools.ietf.org/html/rfc7946#section-3.2)** The current flattened feature being processed.
- `featureIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The current index of the Feature being processed.
- `multiFeatureIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The current index of the Multi-Feature being processed.

@@ -450,4 +451,4 @@ ## flattenEach

- `geojson` **([FeatureCollection](http://geojson.org/geojson-spec.html#feature-collection-objects) \| [Feature](http://geojson.org/geojson-spec.html#feature-objects) \| [Geometry](http://geojson.org/geojson-spec.html#geometry))** any GeoJSON object
- `callback` **[Function](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/function)** a method that takes (currentFeature, featureIndex, featureSubIndex)
- `geojson` **([FeatureCollection](https://tools.ietf.org/html/rfc7946#section-3.3) \| [Feature](https://tools.ietf.org/html/rfc7946#section-3.2) \| [Geometry](https://tools.ietf.org/html/rfc7946#section-3.1))** any GeoJSON object
- `callback` **[Function](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/function)** a method that takes (currentFeature, featureIndex, multiFeatureIndex)

@@ -462,6 +463,6 @@ **Examples**

turf.flattenEach(features, function (currentFeature, featureIndex, featureSubIndex) {
turf.flattenEach(features, function (currentFeature, featureIndex, multiFeatureIndex) {
//=currentFeature
//=featureIndex
//=featureSubIndex
//=multiFeatureIndex
});

@@ -493,7 +494,5 @@ ```

of the callback, or initialValue, if supplied.
- `currentFeature` **[Feature](http://geojson.org/geojson-spec.html#feature-objects)** The current Feature being processed.
- `featureIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The index of the current element being processed in the
array.Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
- `featureSubIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The subindex of the current element being processed in the
array. Starts at index 0 and increases if the flattened feature was a multi-geometry.
- `currentFeature` **[Feature](https://tools.ietf.org/html/rfc7946#section-3.2)** The current Feature being processed.
- `featureIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The current index of the Feature being processed.
- `multiFeatureIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The current index of the Multi-Feature being processed.

@@ -506,4 +505,4 @@ ## flattenReduce

- `geojson` **([FeatureCollection](http://geojson.org/geojson-spec.html#feature-collection-objects) \| [Feature](http://geojson.org/geojson-spec.html#feature-objects) \| [Geometry](http://geojson.org/geojson-spec.html#geometry))** any GeoJSON object
- `callback` **[Function](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/function)** a method that takes (previousValue, currentFeature, featureIndex, featureSubIndex)
- `geojson` **([FeatureCollection](https://tools.ietf.org/html/rfc7946#section-3.3) \| [Feature](https://tools.ietf.org/html/rfc7946#section-3.2) \| [Geometry](https://tools.ietf.org/html/rfc7946#section-3.1))** any GeoJSON object
- `callback` **[Function](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/function)** a method that takes (previousValue, currentFeature, featureIndex, multiFeatureIndex)
- `initialValue` **any?** Value to use as the first argument to the first call of the callback.

@@ -519,7 +518,7 @@

turf.flattenReduce(features, function (previousValue, currentFeature, featureIndex, featureSubIndex) {
turf.flattenReduce(features, function (previousValue, currentFeature, featureIndex, multiFeatureIndex) {
//=previousValue
//=currentFeature
//=featureIndex
//=featureSubIndex
//=multiFeatureIndex
return currentFeature

@@ -539,6 +538,7 @@ });

- `currentSegment` **[Feature](http://geojson.org/geojson-spec.html#feature-objects)&lt;[LineString](http://geojson.org/geojson-spec.html#linestring)>** The current segment being processed.
- `featureIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The featureIndex currently being processed, starts at index 0.
- `featureSubIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The featureSubIndex currently being processed, starts at index 0.
- `segmentIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The segmentIndex currently being processed, starts at index 0.
- `currentSegment` **[Feature](https://tools.ietf.org/html/rfc7946#section-3.2)&lt;[LineString](https://tools.ietf.org/html/rfc7946#section-3.1.4)>** The current Segment being processed.
- `featureIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The current index of the Feature being processed.
- `multiFeatureIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The current index of the Multi-Feature being processed.
- `geometryIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The current index of the Geometry being processed.
- `segmentIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The current index of the Segment being processed.

@@ -554,4 +554,4 @@ Returns **void**

- `geojson` **([FeatureCollection](http://geojson.org/geojson-spec.html#feature-collection-objects) \| [Feature](http://geojson.org/geojson-spec.html#feature-objects) \| [Geometry](http://geojson.org/geojson-spec.html#geometry))** any GeoJSON
- `callback` **[Function](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/function)** a method that takes (currentSegment, featureIndex, featureSubIndex)
- `geojson` **([FeatureCollection](https://tools.ietf.org/html/rfc7946#section-3.3) \| [Feature](https://tools.ietf.org/html/rfc7946#section-3.2) \| [Geometry](https://tools.ietf.org/html/rfc7946#section-3.1))** any GeoJSON
- `callback` **[Function](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/function)** a method that takes (currentSegment, featureIndex, multiFeatureIndex, geometryIndex, segmentIndex)

@@ -564,7 +564,8 @@ **Examples**

// Iterate over GeoJSON by 2-vertex segments
turf.segmentEach(polygon, function (currentSegment, featureIndex, featureSubIndex, segmentIndex) {
//= currentSegment
//= featureIndex
//= featureSubIndex
//= segmentIndex
turf.segmentEach(polygon, function (currentSegment, featureIndex, multiFeatureIndex, geometryIndex, segmentIndex) {
//=currentSegment
//=featureIndex
//=multiFeatureIndex
//=geometryIndex
//=segmentIndex
});

@@ -602,8 +603,9 @@

- `previousValue` **any?** The accumulated value previously returned in the last invocation
- `previousValue` **any** The accumulated value previously returned in the last invocation
of the callback, or initialValue, if supplied.
- `currentSegment` **[Feature](http://geojson.org/geojson-spec.html#feature-objects)&lt;[LineString](http://geojson.org/geojson-spec.html#linestring)>?** The current segment being processed.
- `featureIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The featureIndex currently being processed, starts at index 0.
- `featureSubIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The featureSubIndex currently being processed, starts at index 0.
- `segmentIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The segmentIndex currently being processed, starts at index 0.
- `currentSegment` **[Feature](https://tools.ietf.org/html/rfc7946#section-3.2)&lt;[LineString](https://tools.ietf.org/html/rfc7946#section-3.1.4)>** The current Segment being processed.
- `featureIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The current index of the Feature being processed.
- `multiFeatureIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The current index of the Multi-Feature being processed.
- `geometryIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The current index of the Geometry being processed.
- `segmentIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The current index of the Segment being processed.

@@ -617,3 +619,3 @@ ## segmentReduce

- `geojson` **([FeatureCollection](http://geojson.org/geojson-spec.html#feature-collection-objects) \| [Feature](http://geojson.org/geojson-spec.html#feature-objects) \| [Geometry](http://geojson.org/geojson-spec.html#geometry))** any GeoJSON
- `geojson` **([FeatureCollection](https://tools.ietf.org/html/rfc7946#section-3.3) \| [Feature](https://tools.ietf.org/html/rfc7946#section-3.2) \| [Geometry](https://tools.ietf.org/html/rfc7946#section-3.1))** any GeoJSON
- `callback` **[Function](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/function)** a method that takes (previousValue, currentSegment, currentIndex)

@@ -628,7 +630,8 @@ - `initialValue` **any?** Value to use as the first argument to the first call of the callback.

// Iterate over GeoJSON by 2-vertex segments
turf.segmentReduce(polygon, function (previousSegment, currentSegment, featureIndex, featureSubIndex, segmentIndex) {
turf.segmentReduce(polygon, function (previousSegment, currentSegment, featureIndex, multiFeatureIndex, geometryIndex, segmentIndex) {
//= previousSegment
//= currentSegment
//= featureIndex
//= featureSubIndex
//= multiFeatureIndex
//= geometryIndex
//= segmentInex

@@ -656,6 +659,6 @@ return currentSegment

- `currentLine` **[Feature](http://geojson.org/geojson-spec.html#feature-objects)&lt;[LineString](http://geojson.org/geojson-spec.html#linestring)>** The current LineString|LinearRing being processed.
- `featureIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The feature index of the current element being processed in the array, starts at index 0.
- `featureSubIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The feature sub-index of the current line being processed at index 0
- `lineIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The current line being processed at index 0
- `currentLine` **[Feature](https://tools.ietf.org/html/rfc7946#section-3.2)&lt;[LineString](https://tools.ietf.org/html/rfc7946#section-3.1.4)>** The current LineString|LinearRing being processed
- `featureIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The current index of the Feature being processed
- `multiFeatureIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The current index of the Multi-Feature being processed
- `geometryIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The current index of the Geometry being processed

@@ -669,4 +672,4 @@ ## lineEach

- `geojson` **([Geometry](http://geojson.org/geojson-spec.html#geometry) \| [Feature](http://geojson.org/geojson-spec.html#feature-objects)&lt;([LineString](http://geojson.org/geojson-spec.html#linestring) \| [Polygon](http://geojson.org/geojson-spec.html#polygon) \| [MultiLineString](http://geojson.org/geojson-spec.html#multilinestring) \| [MultiPolygon](http://geojson.org/geojson-spec.html#multipolygon))>)** object
- `callback` **[Function](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/function)** a method that takes (currentLine, featureIndex, featureSubIndex, lineIndex)
- `geojson` **([Geometry](https://tools.ietf.org/html/rfc7946#section-3.1) \| [Feature](https://tools.ietf.org/html/rfc7946#section-3.2)&lt;([LineString](https://tools.ietf.org/html/rfc7946#section-3.1.4) \| [Polygon](https://tools.ietf.org/html/rfc7946#section-3.1.6) \| [MultiLineString](https://tools.ietf.org/html/rfc7946#section-3.1.5) \| [MultiPolygon](https://tools.ietf.org/html/rfc7946#section-3.1.7))>)** object
- `callback` **[Function](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/function)** a method that takes (currentLine, featureIndex, multiFeatureIndex, geometryIndex)

@@ -681,7 +684,7 @@ **Examples**

turf.lineEach(multiLine, function (currentLine, featureIndex, featureSubIndex, lineIndex) {
turf.lineEach(multiLine, function (currentLine, featureIndex, multiFeatureIndex, geometryIndex) {
//=currentLine
//=featureIndex
//=featureSubIndex
//=lineIndex
//=multiFeatureIndex
//=geometryIndex
});

@@ -713,6 +716,6 @@ ```

of the callback, or initialValue, if supplied.
- `currentLine` **[Feature](http://geojson.org/geojson-spec.html#feature-objects)&lt;[LineString](http://geojson.org/geojson-spec.html#linestring)>** The current LineString|LinearRing being processed.
- `featureIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The feature index of the current element being processed in the array, starts at index 0.
- `featureSubIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The feature sub-index of the current line being processed at index 0
- `lineIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The current line being processed at index 0
- `currentLine` **[Feature](https://tools.ietf.org/html/rfc7946#section-3.2)&lt;[LineString](https://tools.ietf.org/html/rfc7946#section-3.1.4)>** The current LineString|LinearRing being processed.
- `featureIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The current index of the Feature being processed
- `multiFeatureIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The current index of the Multi-Feature being processed
- `geometryIndex` **[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The current index of the Geometry being processed

@@ -725,4 +728,4 @@ ## lineReduce

- `geojson` **([Geometry](http://geojson.org/geojson-spec.html#geometry) \| [Feature](http://geojson.org/geojson-spec.html#feature-objects)&lt;([LineString](http://geojson.org/geojson-spec.html#linestring) \| [Polygon](http://geojson.org/geojson-spec.html#polygon) \| [MultiLineString](http://geojson.org/geojson-spec.html#multilinestring) \| [MultiPolygon](http://geojson.org/geojson-spec.html#multipolygon))>)** object
- `callback` **[Function](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/function)** a method that takes (previousValue, currentFeature, featureIndex)
- `geojson` **([Geometry](https://tools.ietf.org/html/rfc7946#section-3.1) \| [Feature](https://tools.ietf.org/html/rfc7946#section-3.2)&lt;([LineString](https://tools.ietf.org/html/rfc7946#section-3.1.4) \| [Polygon](https://tools.ietf.org/html/rfc7946#section-3.1.6) \| [MultiLineString](https://tools.ietf.org/html/rfc7946#section-3.1.5) \| [MultiPolygon](https://tools.ietf.org/html/rfc7946#section-3.1.7))>)** object
- `callback` **[Function](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/function)** a method that takes (previousValue, currentLine, featureIndex, multiFeatureIndex, geometryIndex)
- `initialValue` **any?** Value to use as the first argument to the first call of the callback.

@@ -733,3 +736,3 @@

```javascript
var mtp = turf.multiPolygon([
var multiPoly = turf.multiPolygon([
turf.polygon([[[12,48],[2,41],[24,38],[12,48]], [[9,44],[13,41],[13,45],[9,44]]]),

@@ -739,10 +742,10 @@ turf.polygon([[[5, 5], [0, 0], [2, 2], [4, 4], [5, 5]]])

turf.lineReduce(mtp, function (previousValue, currentLine, featureIndex, featureSubIndex, lineIndex) {
turf.lineReduce(multiPoly, function (previousValue, currentLine, featureIndex, multiFeatureIndex, geometryIndex) {
//=previousValue
//=currentLine
//=featureIndex
//=featureSubIndex
//=lineIndex
//=multiFeatureIndex
//=geometryIndex
return currentLine
}, 2);
});
```

@@ -749,0 +752,0 @@

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