| var baseIteratee = require('./_baseIteratee'), |
| basePullAt = require('./_basePullAt'); |
| |
| /** |
| * Removes all elements from `array` that `predicate` returns truthy for |
| * and returns an array of the removed elements. The predicate is invoked |
| * with three arguments: (value, index, array). |
| * |
| * **Note:** Unlike `_.filter`, this method mutates `array`. Use `_.pull` |
| * to pull elements from an array by value. |
| * |
| * @static |
| * @memberOf _ |
| * @since 2.0.0 |
| * @category Array |
| * @param {Array} array The array to modify. |
| * @param {Function} [predicate=_.identity] The function invoked per iteration. |
| * @returns {Array} Returns the new array of removed elements. |
| * @example |
| * |
| * var array = [1, 2, 3, 4]; |
| * var evens = _.remove(array, function(n) { |
| * return n % 2 == 0; |
| * }); |
| * |
| * console.log(array); |
| * // => [1, 3] |
| * |
| * console.log(evens); |
| * // => [2, 4] |
| */ |
| function remove(array, predicate) { |
| var result = []; |
| if (!(array && array.length)) { |
| return result; |
| } |
| var index = -1, |
| indexes = [], |
| length = array.length; |
| |
| predicate = baseIteratee(predicate, 3); |
| while (++index < length) { |
| var value = array[index]; |
| if (predicate(value, index, array)) { |
| result.push(value); |
| indexes.push(index); |
| } |
| } |
| basePullAt(array, indexes); |
| return result; |
| } |
| |
| module.exports = remove; |