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lodash.findindex

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lodash.findindex - npm Package Compare versions

Comparing version 3.2.1 to 4.0.0

LICENSE

451

index.js
/**
* lodash 3.2.1 (Custom Build) <https://lodash.com/>
* Build: `lodash modern modularize exports="npm" -o ./`
* Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
* lodash 4.0.0 (Custom Build) <https://lodash.com/>
* Build: `lodash modularize exports="npm" -o ./`
* Copyright 2012-2016 The Dojo Foundation <http://dojofoundation.org/>
* Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
* Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
* Copyright 2009-2016 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
* Available under MIT license <https://lodash.com/license>
*/
var baseCallback = require('lodash._basecallback'),
baseFindIndex = require('lodash._basefindindex');
var baseFindIndex = require('lodash._basefindindex'),
baseIsEqual = require('lodash._baseisequal'),
baseIsMatch = require('lodash._baseismatch'),
get = require('lodash.get'),
hasIn = require('lodash.hasin'),
toPairs = require('lodash.topairs');
/** Used to compose bitmasks for comparison styles. */
var UNORDERED_COMPARE_FLAG = 1,
PARTIAL_COMPARE_FLAG = 2;
/** Used as references for various `Number` constants. */
var INFINITY = 1 / 0;
/** `Object#toString` result references. */
var symbolTag = '[object Symbol]';
/** Used to match property names within property paths. */
var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/,
reIsPlainProp = /^\w*$/,
rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]/g;
/** Used to match backslashes in property paths. */
var reEscapeChar = /\\(\\)?/g;
/** Used for built-in method references. */
var objectProto = global.Object.prototype;
/**
* Creates a `_.findIndex` or `_.findLastIndex` function.
* Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
* of values.
*/
var objectToString = objectProto.toString;
/** Built-in value references. */
var _Symbol = global.Symbol;
/** Used to convert symbols to primitives and strings. */
var symbolProto = _Symbol ? _Symbol.prototype : undefined,
symbolToString = _Symbol ? symbolProto.toString : undefined;
/**
* The base implementation of `_.get` without support for default values.
*
* @private
* @param {boolean} [fromRight] Specify iterating from right to left.
* @returns {Function} Returns the new find function.
* @param {Object} object The object to query.
* @param {Array|string} path The path of the property to get.
* @returns {*} Returns the resolved value.
*/
function createFindIndex(fromRight) {
return function(array, predicate, thisArg) {
if (!(array && array.length)) {
return -1;
}
predicate = baseCallback(predicate, thisArg, 3);
return baseFindIndex(array, predicate, fromRight);
function baseGet(object, path) {
path = isKey(path, object) ? [path + ''] : baseToPath(path);
var index = 0,
length = path.length;
while (object != null && index < length) {
object = object[path[index++]];
}
return (index && index == length) ? object : undefined;
}
/**
* The base implementation of `_.iteratee`.
*
* @private
* @param {*} [value=_.identity] The value to convert to an iteratee.
* @returns {Function} Returns the iteratee.
*/
function baseIteratee(value) {
var type = typeof value;
if (type == 'function') {
return value;
}
if (value == null) {
return identity;
}
if (type == 'object') {
return isArray(value)
? baseMatchesProperty(value[0], value[1])
: baseMatches(value);
}
return property(value);
}
/**
* The base implementation of `_.matches` which doesn't clone `source`.
*
* @private
* @param {Object} source The object of property values to match.
* @returns {Function} Returns the new function.
*/
function baseMatches(source) {
var matchData = getMatchData(source);
if (matchData.length == 1 && matchData[0][2]) {
var key = matchData[0][0],
value = matchData[0][1];
return function(object) {
if (object == null) {
return false;
}
return object[key] === value &&
(value !== undefined || (key in Object(object)));
};
}
return function(object) {
return object === source || baseIsMatch(object, source, matchData);
};

@@ -30,16 +120,121 @@ }

/**
* This method is like `_.find` except that it returns the index of the first
* element `predicate` returns truthy for instead of the element itself.
* The base implementation of `_.matchesProperty` which doesn't clone `srcValue`.
*
* If a property name is provided for `predicate` the created `_.property`
* style callback returns the property value of the given element.
* @private
* @param {string} path The path of the property to get.
* @param {*} srcValue The value to match.
* @returns {Function} Returns the new function.
*/
function baseMatchesProperty(path, srcValue) {
return function(object) {
var objValue = get(object, path);
return (objValue === undefined && objValue === srcValue)
? hasIn(object, path)
: baseIsEqual(srcValue, objValue, undefined, UNORDERED_COMPARE_FLAG | PARTIAL_COMPARE_FLAG);
};
}
/**
* The base implementation of `_.property` without support for deep paths.
*
* If a value is also provided for `thisArg` the created `_.matchesProperty`
* style callback returns `true` for elements that have a matching property
* value, else `false`.
* @private
* @param {string} key The key of the property to get.
* @returns {Function} Returns the new function.
*/
function baseProperty(key) {
return function(object) {
return object == null ? undefined : object[key];
};
}
/**
* A specialized version of `baseProperty` which supports deep paths.
*
* If an object is provided for `predicate` the created `_.matches` style
* callback returns `true` for elements that have the properties of the given
* object, else `false`.
* @private
* @param {Array|string} path The path of the property to get.
* @returns {Function} Returns the new function.
*/
function basePropertyDeep(path) {
return function(object) {
return baseGet(object, path);
};
}
/**
* The base implementation of `_.toPath` which only converts `value` to a
* path if it's not one.
*
* @private
* @param {*} value The value to process.
* @returns {Array} Returns the property path array.
*/
function baseToPath(value) {
return isArray(value) ? value : stringToPath(value);
}
/**
* Gets the property names, values, and compare flags of `object`.
*
* @private
* @param {Object} object The object to query.
* @returns {Array} Returns the match data of `object`.
*/
function getMatchData(object) {
var result = toPairs(object),
length = result.length;
while (length--) {
result[length][2] = isStrictComparable(result[length][1]);
}
return result;
}
/**
* Checks if `value` is a property name and not a property path.
*
* @private
* @param {*} value The value to check.
* @param {Object} [object] The object to query keys on.
* @returns {boolean} Returns `true` if `value` is a property name, else `false`.
*/
function isKey(value, object) {
if (typeof value == 'number') {
return true;
}
return !isArray(value) &&
(reIsPlainProp.test(value) || !reIsDeepProp.test(value) ||
(object != null && value in Object(object)));
}
/**
* Checks if `value` is suitable for strict equality comparisons, i.e. `===`.
*
* @private
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` if suitable for strict
* equality comparisons, else `false`.
*/
function isStrictComparable(value) {
return value === value && !isObject(value);
}
/**
* Converts `string` to a property path array.
*
* @private
* @param {string} string The string to convert.
* @returns {Array} Returns the property path array.
*/
function stringToPath(string) {
var result = [];
toString(string).replace(rePropName, function(match, number, quote, string) {
result.push(quote ? string.replace(reEscapeChar, '$1') : (number || match));
});
return result;
}
/**
* This method is like `_.find` except that it returns the index of the first
* element `predicate` returns truthy for instead of the element itself.
*
* @static

@@ -49,5 +244,3 @@ * @memberOf _

* @param {Array} array The array to search.
* @param {Function|Object|string} [predicate=_.identity] The function invoked
* per iteration.
* @param {*} [thisArg] The `this` binding of `predicate`.
* @param {Function|Object|string} [predicate=_.identity] The function invoked per iteration.
* @returns {number} Returns the index of the found element, else `-1`.

@@ -62,21 +255,205 @@ * @example

*
* _.findIndex(users, function(chr) {
* return chr.user == 'barney';
* });
* _.findIndex(users, function(o) { return o.user == 'barney'; });
* // => 0
*
* // using the `_.matches` callback shorthand
* // using the `_.matches` iteratee shorthand
* _.findIndex(users, { 'user': 'fred', 'active': false });
* // => 1
*
* // using the `_.matchesProperty` callback shorthand
* _.findIndex(users, 'active', false);
* // using the `_.matchesProperty` iteratee shorthand
* _.findIndex(users, ['active', false]);
* // => 0
*
* // using the `_.property` callback shorthand
* // using the `_.property` iteratee shorthand
* _.findIndex(users, 'active');
* // => 2
*/
var findIndex = createFindIndex();
function findIndex(array, predicate) {
return (array && array.length)
? baseFindIndex(array, baseIteratee(predicate, 3))
: -1;
}
/**
* Checks if `value` is classified as an `Array` object.
*
* @static
* @memberOf _
* @type Function
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
* @example
*
* _.isArray([1, 2, 3]);
* // => true
*
* _.isArray(document.body.children);
* // => false
*
* _.isArray('abc');
* // => false
*
* _.isArray(_.noop);
* // => false
*/
var isArray = Array.isArray;
/**
* Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
* (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
*
* @static
* @memberOf _
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is an object, else `false`.
* @example
*
* _.isObject({});
* // => true
*
* _.isObject([1, 2, 3]);
* // => true
*
* _.isObject(_.noop);
* // => true
*
* _.isObject(null);
* // => false
*/
function isObject(value) {
// Avoid a V8 JIT bug in Chrome 19-20.
// See https://code.google.com/p/v8/issues/detail?id=2291 for more details.
var type = typeof value;
return !!value && (type == 'object' || type == 'function');
}
/**
* Checks if `value` is object-like. A value is object-like if it's not `null`
* and has a `typeof` result of "object".
*
* @static
* @memberOf _
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is object-like, else `false`.
* @example
*
* _.isObjectLike({});
* // => true
*
* _.isObjectLike([1, 2, 3]);
* // => true
*
* _.isObjectLike(_.noop);
* // => false
*
* _.isObjectLike(null);
* // => false
*/
function isObjectLike(value) {
return !!value && typeof value == 'object';
}
/**
* Checks if `value` is classified as a `Symbol` primitive or object.
*
* @static
* @memberOf _
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
* @example
*
* _.isSymbol(Symbol.iterator);
* // => true
*
* _.isSymbol('abc');
* // => false
*/
function isSymbol(value) {
return typeof value == 'symbol' ||
(isObjectLike(value) && objectToString.call(value) == symbolTag);
}
/**
* Converts `value` to a string if it's not one. An empty string is returned
* for `null` and `undefined` values. The sign of `-0` is preserved.
*
* @static
* @memberOf _
* @category Lang
* @param {*} value The value to process.
* @returns {string} Returns the string.
* @example
*
* _.toString(null);
* // => ''
*
* _.toString(-0);
* // => '-0'
*
* _.toString([1, 2, 3]);
* // => '1,2,3'
*/
function toString(value) {
// Exit early for strings to avoid a performance hit in some environments.
if (typeof value == 'string') {
return value;
}
if (value == null) {
return '';
}
if (isSymbol(value)) {
return _Symbol ? symbolToString.call(value) : '';
}
var result = (value + '');
return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;
}
/**
* This method returns the first argument provided to it.
*
* @static
* @memberOf _
* @category Util
* @param {*} value Any value.
* @returns {*} Returns `value`.
* @example
*
* var object = { 'user': 'fred' };
*
* _.identity(object) === object;
* // => true
*/
function identity(value) {
return value;
}
/**
* Creates a function that returns the value at `path` of a given object.
*
* @static
* @memberOf _
* @category Util
* @param {Array|string} path The path of the property to get.
* @returns {Function} Returns the new function.
* @example
*
* var objects = [
* { 'a': { 'b': { 'c': 2 } } },
* { 'a': { 'b': { 'c': 1 } } }
* ];
*
* _.map(objects, _.property('a.b.c'));
* // => [2, 1]
*
* _.map(_.sortBy(objects, _.property(['a', 'b', 'c'])), 'a.b.c');
* // => [1, 2]
*/
function property(path) {
return isKey(path) ? baseProperty(path) : basePropertyDeep(path);
}
module.exports = findIndex;

17

package.json
{
"name": "lodash.findindex",
"version": "3.2.1",
"description": "The modern build of lodash’s `_.findIndex` as a module.",
"version": "4.0.0",
"description": "The lodash method `_.findIndex` exported as a module.",
"homepage": "https://lodash.com/",
"icon": "https://lodash.com/icon.svg",
"license": "MIT",
"keywords": "lodash, lodash-modularized, stdlib, util",
"keywords": "lodash, lodash-modularized, stdlib, util, findindex",
"author": "John-David Dalton <john.david.dalton@gmail.com> (http://allyoucanleet.com/)",
"contributors": [
"John-David Dalton <john.david.dalton@gmail.com> (http://allyoucanleet.com/)",
"Benjamin Tan <demoneaux@gmail.com> (https://d10.github.io/)",
"Blaine Bublitz <blaine@iceddev.com> (http://www.iceddev.com/)",
"Kit Cambridge <github@kitcambridge.be> (http://kitcambridge.be/)",
"Blaine Bublitz <blaine@iceddev.com> (https://github.com/phated)",
"Mathias Bynens <mathias@qiwi.be> (https://mathiasbynens.be/)"

@@ -20,6 +18,9 @@ ],

"dependencies": {
"lodash._basecallback": "^3.0.0",
"lodash._basefindindex": "^3.0.0",
"lodash.isarray": "^3.0.0"
"lodash._baseisequal": "^4.0.0",
"lodash._baseismatch": "^4.0.0",
"lodash.get": "^4.0.0",
"lodash.hasin": "^4.0.0",
"lodash.topairs": "^4.0.0"
}
}

@@ -1,4 +0,4 @@

# lodash.findindex v3.2.1
# lodash.findindex v4.0.0
The [modern build](https://github.com/lodash/lodash/wiki/Build-Differences) of [lodash’s](https://lodash.com/) `_.findIndex` exported as a [Node.js](http://nodejs.org/)/[io.js](https://iojs.org/) module.
The [lodash](https://lodash.com/) method `_.findIndex` exported as a [Node.js](https://nodejs.org/) module.

@@ -8,3 +8,2 @@ ## Installation

Using npm:
```bash

@@ -15,4 +14,3 @@ $ {sudo -H} npm i -g npm

In Node.js/io.js:
In Node.js:
```js

@@ -22,2 +20,2 @@ var findIndex = require('lodash.findindex');

See the [documentation](https://lodash.com/docs#findIndex) or [package source](https://github.com/lodash/lodash/blob/3.2.1-npm-packages/lodash.findindex) for more details.
See the [documentation](https://lodash.com/docs#findIndex) or [package source](https://github.com/lodash/lodash/blob/4.0.0-npm-packages/lodash.findindex) for more details.
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