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