38 lines
1.1 KiB
JavaScript
38 lines
1.1 KiB
JavaScript
//#region src/array/remove.ts
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/**
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* Removes elements from an array based on a predicate function.
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*
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* This function changes `arr` in place.
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* If you want to remove elements without modifying the original array, use `filter`.
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*
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* @template T
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* @param {T[]} arr - The array to modify.
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* @param {(value: T, index: number, array: T[]) => boolean} shouldRemoveElement - The function invoked per iteration to determine if an element should be removed.
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* @returns {T[]} The modified array with the specified elements removed.
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*
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* @example
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* const numbers = [1, 2, 3, 4, 5];
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* remove(numbers, (value) => value % 2 === 0);
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* console.log(numbers); // [1, 3, 5]
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*/
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function remove(arr, shouldRemoveElement) {
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const originalArr = arr.slice();
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const removed = [];
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let resultIndex = 0;
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for (let i = 0; i < arr.length; i++) {
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if (shouldRemoveElement(arr[i], i, originalArr)) {
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removed.push(arr[i]);
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continue;
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}
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if (!Object.hasOwn(arr, i)) {
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delete arr[resultIndex++];
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continue;
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}
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arr[resultIndex++] = arr[i];
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}
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arr.length = resultIndex;
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return removed;
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}
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//#endregion
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exports.remove = remove;
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