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25 lines
716 B
25 lines
716 B
10 years ago
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var baseFlatten = require('../internal/baseFlatten'),
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baseUniq = require('../internal/baseUniq'),
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restParam = require('../function/restParam');
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/**
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10 years ago
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* Creates an array of unique values, in order, from all of the provided arrays
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9 years ago
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* using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
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10 years ago
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* for equality comparisons.
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*
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* @static
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* @memberOf _
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* @category Array
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* @param {...Array} [arrays] The arrays to inspect.
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* @returns {Array} Returns the new array of combined values.
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* @example
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*
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* _.union([1, 2], [4, 2], [2, 1]);
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* // => [1, 2, 4]
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*/
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var union = restParam(function(arrays) {
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return baseUniq(baseFlatten(arrays, false, true));
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});
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module.exports = union;
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