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