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54 lines
1.3 KiB
JavaScript
54 lines
1.3 KiB
JavaScript
6 years ago
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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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