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| import baseFlatten from './.internal/baseFlatten.js' | |
| import baseUniq from './.internal/baseUniq.js' | |
| import isArrayLikeObject from './isArrayLikeObject.js' | |
| import last from './last.js' | |
| /** | |
| * 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). | |
| * | |
| * @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. | |
| * @see difference, union, unionBy, without, xor, xorBy | |
| * @example | |
| * | |
| * const objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }] | |
| * const 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 }] | |
| */ | |
| function unionWith(...arrays) { | |
| let comparator = last(arrays) | |
| comparator = typeof comparator === 'function' ? comparator : undefined | |
| return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), undefined, comparator) | |
| } | |
| export default unionWith |