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71 lines
2.3 KiB
JavaScript
71 lines
2.3 KiB
JavaScript
/**
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* lodash 3.0.2 (Custom Build) <https://lodash.com/>
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* Build: `lodash modern modularize exports="npm" -o ./`
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* Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
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* Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
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* Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
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* Available under MIT license <https://lodash.com/license>
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*/
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var baseEachRight = require('lodash._baseeachright'),
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bindCallback = require('lodash._bindcallback'),
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isArray = require('lodash.isarray');
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/**
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* A specialized version of `_.forEachRight` for arrays without support for
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* callback shorthands and `this` binding.
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*
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* @private
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* @param {Array} array The array to iterate over.
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* @param {Function} iteratee The function invoked per iteration.
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* @returns {Array} Returns `array`.
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*/
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function arrayEachRight(array, iteratee) {
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var length = array.length;
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while (length--) {
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if (iteratee(array[length], length, array) === false) {
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break;
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}
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}
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return array;
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}
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/**
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* Creates a function for `_.forEach` or `_.forEachRight`.
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*
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* @private
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* @param {Function} arrayFunc The function to iterate over an array.
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* @param {Function} eachFunc The function to iterate over a collection.
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* @returns {Function} Returns the new each function.
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*/
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function createForEach(arrayFunc, eachFunc) {
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return function(collection, iteratee, thisArg) {
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return (typeof iteratee == 'function' && thisArg === undefined && isArray(collection))
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? arrayFunc(collection, iteratee)
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: eachFunc(collection, bindCallback(iteratee, thisArg, 3));
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};
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}
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/**
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* This method is like `_.forEach` except that it iterates over elements of
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* `collection` from right to left.
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*
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* @static
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* @memberOf _
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* @alias eachRight
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* @category Collection
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* @param {Array|Object|string} collection The collection to iterate over.
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* @param {Function} [iteratee=_.identity] The function invoked per iteration.
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* @param {*} [thisArg] The `this` binding of `iteratee`.
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* @returns {Array|Object|string} Returns `collection`.
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* @example
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*
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* _([1, 2]).forEachRight(function(n) {
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* console.log(n);
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* }).value();
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* // => logs each value from right to left and returns the array
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*/
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var forEachRight = createForEach(arrayEachRight, baseEachRight);
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module.exports = forEachRight;
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