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42 lines
1.4 KiB
JavaScript
42 lines
1.4 KiB
JavaScript
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var apply = require('./_apply'),
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baseEach = require('./_baseEach'),
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baseInvoke = require('./_baseInvoke'),
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baseRest = require('./_baseRest'),
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isArrayLike = require('./isArrayLike');
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/**
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* Invokes the method at `path` of each element in `collection`, returning
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* an array of the results of each invoked method. Any additional arguments
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* are provided to each invoked method. If `path` is a function, it's invoked
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* for, and `this` bound to, each element in `collection`.
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*
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* @static
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* @memberOf _
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* @since 4.0.0
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* @category Collection
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* @param {Array|Object} collection The collection to iterate over.
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* @param {Array|Function|string} path The path of the method to invoke or
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* the function invoked per iteration.
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* @param {...*} [args] The arguments to invoke each method with.
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* @returns {Array} Returns the array of results.
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* @example
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*
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* _.invokeMap([[5, 1, 7], [3, 2, 1]], 'sort');
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* // => [[1, 5, 7], [1, 2, 3]]
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*
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* _.invokeMap([123, 456], String.prototype.split, '');
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* // => [['1', '2', '3'], ['4', '5', '6']]
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*/
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var invokeMap = baseRest(function(collection, path, args) {
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var index = -1,
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isFunc = typeof path == 'function',
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result = isArrayLike(collection) ? Array(collection.length) : [];
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baseEach(collection, function(value) {
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result[++index] = isFunc ? apply(path, value, args) : baseInvoke(value, path, args);
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});
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return result;
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});
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module.exports = invokeMap;
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