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lodash.union - npm Package Compare versions

Comparing version 3.1.0 to 4.0.0

LICENSE

315

index.js
/**
* lodash 3.1.0 (Custom Build) <https://lodash.com/>
* Build: `lodash modern modularize exports="npm" -o ./`
* Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
* Based on Underscore.js 1.8.2 <http://underscorejs.org/LICENSE>
* Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
* 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 2009-2016 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
* Available under MIT license <https://lodash.com/license>
*/
var baseFlatten = require('lodash._baseflatten'),
baseUniq = require('lodash._baseuniq'),
restParam = require('lodash.restparam');
var SetCache = require('lodash._setcache'),
arrayIncludes = require('lodash._arrayincludes'),
arrayIncludesWith = require('lodash._arrayincludeswith'),
baseFlatten = require('lodash._baseflatten'),
cacheHas = require('lodash._cachehas'),
rest = require('lodash.rest');
/** Used as the size to enable large array optimizations. */
var LARGE_ARRAY_SIZE = 200;
/** `Object#toString` result references. */
var funcTag = '[object Function]',
genTag = '[object GeneratorFunction]';
/** Used to match `RegExp` [syntax characters](http://ecma-international.org/ecma-262/6.0/#sec-patterns). */
var reRegExpChar = /[\\^$.*+?()[\]{}|]/g;
/** Used to detect host constructors (Safari > 5). */
var reIsHostCtor = /^\[object .+?Constructor\]$/;
/**
* Creates an array of unique values, in order, of the provided arrays using
* `SameValueZero` for equality comparisons.
* Checks if `value` is a host object in IE < 9.
*
* **Note:** [`SameValueZero`](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-samevaluezero)
* comparisons are like strict equality comparisons, e.g. `===`, except that
* `NaN` matches `NaN`.
* @private
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is a host object, else `false`.
*/
function isHostObject(value) {
// Many host objects are `Object` objects that can coerce to strings
// despite having improperly defined `toString` methods.
var result = false;
if (value != null && typeof value.toString != 'function') {
try {
result = !!(value + '');
} catch (e) {}
}
return result;
}
/**
* Converts `set` to an array.
*
* @private
* @param {Object} set The set to convert.
* @returns {Array} Returns the converted array.
*/
function setToArray(set) {
var index = -1,
result = Array(set.size);
set.forEach(function(value) {
result[++index] = value;
});
return result;
}
/** Used for built-in method references. */
var objectProto = global.Object.prototype;
/** Used to resolve the decompiled source of functions. */
var funcToString = global.Function.prototype.toString;
/** Used to check objects for own properties. */
var hasOwnProperty = objectProto.hasOwnProperty;
/**
* Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
* of values.
*/
var objectToString = objectProto.toString;
/** Used to detect if a method is native. */
var reIsNative = RegExp('^' +
funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&')
.replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$'
);
/* Built-in method references that are verified to be native. */
var Set = getNative(global, 'Set');
/**
* The base implementation of `_.uniqBy` without support for iteratee shorthands.
*
* @private
* @param {Array} array The array to inspect.
* @param {Function} [iteratee] The iteratee invoked per element.
* @param {Function} [comparator] The comparator invoked per element.
* @returns {Array} Returns the new duplicate free array.
*/
function baseUniq(array, iteratee, comparator) {
var index = -1,
includes = arrayIncludes,
length = array.length,
isCommon = true,
result = [],
seen = result;
if (comparator) {
isCommon = false;
includes = arrayIncludesWith;
}
else if (length >= LARGE_ARRAY_SIZE) {
var set = iteratee ? null : createSet(array);
if (set) {
return setToArray(set);
}
isCommon = false;
includes = cacheHas;
seen = new SetCache;
}
else {
seen = iteratee ? [] : result;
}
outer:
while (++index < length) {
var value = array[index],
computed = iteratee ? iteratee(value) : value;
if (isCommon && computed === computed) {
var seenIndex = seen.length;
while (seenIndex--) {
if (seen[seenIndex] === computed) {
continue outer;
}
}
if (iteratee) {
seen.push(computed);
}
result.push(value);
}
else if (!includes(seen, computed, comparator)) {
if (seen !== result) {
seen.push(computed);
}
result.push(value);
}
}
return result;
}
/**
* Creates a set of `values`.
*
* @private
* @param {Array} values The values to add to the set.
* @returns {Object} Returns the new set.
*/
var createSet = !(Set && new Set([1, 2]).size === 2) ? noop : function(values) {
return new Set(values);
};
/**
* Gets the native function at `key` of `object`.
*
* @private
* @param {Object} object The object to query.
* @param {string} key The key of the method to get.
* @returns {*} Returns the function if it's native, else `undefined`.
*/
function getNative(object, key) {
var value = object == null ? undefined : object[key];
return isNative(value) ? value : undefined;
}
/**
* Creates an array of unique values, in order, from all of the provided arrays
* using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
* for equality comparisons.
*
* @static

@@ -28,9 +185,135 @@ * @memberOf _

*
* _.union([1, 2], [4, 2], [2, 1]);
* // => [1, 2, 4]
* _.union([2, 1], [4, 2], [1, 2]);
* // => [2, 1, 4]
*/
var union = restParam(function(arrays) {
var union = rest(function(arrays) {
return baseUniq(baseFlatten(arrays, false, true));
});
/**
* Checks if `value` is classified as a `Function` object.
*
* @static
* @memberOf _
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
* @example
*
* _.isFunction(_);
* // => true
*
* _.isFunction(/abc/);
* // => false
*/
function isFunction(value) {
// The use of `Object#toString` avoids issues with the `typeof` operator
// in Safari 8 which returns 'object' for typed array constructors, and
// PhantomJS 1.9 which returns 'function' for `NodeList` instances.
var tag = isObject(value) ? objectToString.call(value) : '';
return tag == funcTag || tag == genTag;
}
/**
* 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 a native function.
*
* @static
* @memberOf _
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is a native function, else `false`.
* @example
*
* _.isNative(Array.prototype.push);
* // => true
*
* _.isNative(_);
* // => false
*/
function isNative(value) {
if (value == null) {
return false;
}
if (isFunction(value)) {
return reIsNative.test(funcToString.call(value));
}
return isObjectLike(value) &&
(isHostObject(value) ? reIsNative : reIsHostCtor).test(value);
}
/**
* A no-operation function that returns `undefined` regardless of the
* arguments it receives.
*
* @static
* @memberOf _
* @category Util
* @example
*
* var object = { 'user': 'fred' };
*
* _.noop(object) === undefined;
* // => true
*/
function noop() {
// No operation performed.
}
module.exports = union;

19

package.json
{
"name": "lodash.union",
"version": "3.1.0",
"description": "The modern build of lodash’s `_.union` as a module.",
"version": "4.0.0",
"description": "The lodash method `_.union` 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, union",
"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._baseflatten": "^3.0.0",
"lodash._baseuniq": "^3.0.0",
"lodash.restparam": "^3.0.0"
"lodash._arrayincludes": "^3.0.0",
"lodash._arrayincludeswith": "^3.0.0",
"lodash._baseflatten": "^4.0.0",
"lodash._cachehas": "^3.0.0",
"lodash._setcache": "^3.0.0",
"lodash.rest": "^4.0.0"
}
}

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

# lodash.union v3.1.0
# lodash.union v4.0.0
The [modern build](https://github.com/lodash/lodash/wiki/Build-Differences) of [lodash’s](https://lodash.com/) `_.union` exported as a [Node.js](http://nodejs.org/)/[io.js](https://iojs.org/) module.
The [lodash](https://lodash.com/) method `_.union` 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 union = require('lodash.union');

See the [documentation](https://lodash.com/docs#union) or [package source](https://github.com/lodash/lodash/blob/3.1.0-npm-packages/lodash.union) for more details.
See the [documentation](https://lodash.com/docs#union) or [package source](https://github.com/lodash/lodash/blob/4.0.0-npm-packages/lodash.union) for more details.
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