1 var baseFlatten = require('../internal/baseFlatten'),
2 baseUniq = require('../internal/baseUniq'),
3 restParam = require('../function/restParam');
6 * Creates an array of unique values, in order, from all of the provided arrays
7 * using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
8 * for equality comparisons.
13 * @param {...Array} [arrays] The arrays to inspect.
14 * @returns {Array} Returns the new array of combined values.
17 * _.union([1, 2], [4, 2], [2, 1]);
20 var union = restParam(function(arrays) {
21 return baseUniq(baseFlatten(arrays, false, true));
24 module.exports = union;