root / HServer / 00.Server / 00.Program / node_modules / lodash / invokeMap.js
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| 1 | 39 | HKM | var apply = require('./_apply'), |
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| 2 | baseEach = require('./_baseEach'),
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| 3 | baseInvoke = require('./_baseInvoke'),
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| 4 | baseRest = require('./_baseRest'),
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| 5 | isArrayLike = require('./isArrayLike');
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| 6 | |||
| 7 | /**
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| 8 | * Invokes the method at `path` of each element in `collection`, returning
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| 9 | * an array of the results of each invoked method. Any additional arguments
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| 10 | * are provided to each invoked method. If `path` is a function, it's invoked
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| 11 | * for, and `this` bound to, each element in `collection`.
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| 12 | *
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| 13 | * @static
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| 14 | * @memberOf _
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| 15 | * @since 4.0.0
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| 16 | * @category Collection
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| 17 | * @param {Array|Object} collection The collection to iterate over.
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| 18 | * @param {Array|Function|string} path The path of the method to invoke or
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| 19 | * the function invoked per iteration.
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| 20 | * @param {...*} [args] The arguments to invoke each method with.
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| 21 | * @returns {Array} Returns the array of results.
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| 22 | * @example
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| 23 | *
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| 24 | * _.invokeMap([[5, 1, 7], [3, 2, 1]], 'sort');
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| 25 | * // => [[1, 5, 7], [1, 2, 3]]
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| 26 | *
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| 27 | * _.invokeMap([123, 456], String.prototype.split, '');
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| 28 | * // => [['1', '2', '3'], ['4', '5', '6']]
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| 29 | */
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| 30 | var invokeMap = baseRest(function(collection, path, args) { |
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| 31 | var index = -1, |
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| 32 | isFunc = typeof path == 'function', |
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| 33 | result = isArrayLike(collection) ? Array(collection.length) : []; |
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| 34 | |||
| 35 | baseEach(collection, function(value) {
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| 36 | result[++index] = isFunc ? apply(path, value, args) : baseInvoke(value, path, args); |
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| 37 | }); |
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| 38 | return result;
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| 39 | }); |
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| 40 | |||
| 41 | module.exports = invokeMap; |