45 lines
2.2 KiB
JavaScript
45 lines
2.2 KiB
JavaScript
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const require_dropRightWhile = require("../../array/dropRightWhile.js");
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const require_identity = require("../../function/identity.js");
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const require_isArrayLike = require("../predicate/isArrayLike.js");
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const require_property = require("../object/property.js");
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const require_matches = require("../predicate/matches.js");
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const require_matchesProperty = require("../predicate/matchesProperty.js");
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//#region src/compat/array/dropRightWhile.ts
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/**
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* Removes elements from the end of an array until the predicate returns false.
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*
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* This function iterates over an array and drops elements from the end until the provided
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* predicate function returns false. It then returns a new array with the remaining elements.
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*
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* @template T - The type of elements in the array.
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* @param {ArrayLike<T> | null | undefined} arr - The array from which to drop elements.
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* @param {(item: T, index: number, arr: T[]) => unknown} predicate - A predicate function that determines
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* whether to continue dropping elements. The function is called with each element, index, and array, and dropping
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* continues as long as it returns true.
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* @returns {T[]} A new array with the elements remaining after the predicate returns false.
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*
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* @example
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* const array = [3, 2, 1];
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* const result = dropRightWhile(array, (item, index, arr) => index >= 1);
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* // Returns: [3]
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*/
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function dropRightWhile(arr, predicate = require_identity.identity) {
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if (!require_isArrayLike.isArrayLike(arr)) return [];
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return dropRightWhileImpl(Array.from(arr), predicate);
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}
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function dropRightWhileImpl(arr, predicate) {
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switch (typeof predicate) {
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case "function": return require_dropRightWhile.dropRightWhile(arr, (item, index, arr) => Boolean(predicate(item, index, arr)));
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case "object": if (Array.isArray(predicate) && predicate.length === 2) {
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const key = predicate[0];
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const value = predicate[1];
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return require_dropRightWhile.dropRightWhile(arr, require_matchesProperty.matchesProperty(key, value));
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} else return require_dropRightWhile.dropRightWhile(arr, require_matches.matches(predicate));
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case "symbol":
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case "number":
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case "string": return require_dropRightWhile.dropRightWhile(arr, require_property.property(predicate));
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}
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}
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//#endregion
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exports.dropRightWhile = dropRightWhile;
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