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Diffstat (limited to 'node_modules/lodash/unionWith.js')
-rw-r--r-- | node_modules/lodash/unionWith.js | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/node_modules/lodash/unionWith.js b/node_modules/lodash/unionWith.js new file mode 100644 index 0000000..78736b2 --- /dev/null +++ b/node_modules/lodash/unionWith.js @@ -0,0 +1,34 @@ +var baseFlatten = require('./_baseFlatten'), + baseRest = require('./_baseRest'), + baseUniq = require('./_baseUniq'), + isArrayLikeObject = require('./isArrayLikeObject'), + last = require('./last'); + +/** + * This method is like `_.union` except that it accepts `comparator` which + * is invoked to compare elements of `arrays`. Result values are chosen from + * the first array in which the value occurs. The comparator is invoked + * with two arguments: (arrVal, othVal). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {...Array} [arrays] The arrays to inspect. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new array of combined values. + * @example + * + * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]; + * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }]; + * + * _.unionWith(objects, others, _.isEqual); + * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }] + */ +var unionWith = baseRest(function(arrays) { + var comparator = last(arrays); + comparator = typeof comparator == 'function' ? comparator : undefined; + return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), undefined, comparator); +}); + +module.exports = unionWith; |