51 lines
1.8 KiB
JavaScript
51 lines
1.8 KiB
JavaScript
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import { dropWhile as dropWhile$1 } from "../../array/dropWhile.mjs";
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import { identity } from "../../function/identity.mjs";
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import { toArray } from "../_internal/toArray.mjs";
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import { isArrayLike } from "../predicate/isArrayLike.mjs";
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import { property } from "../object/property.mjs";
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import { matches } from "../predicate/matches.mjs";
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import { matchesProperty } from "../predicate/matchesProperty.mjs";
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//#region src/compat/array/dropWhile.ts
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/**
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* Creates a slice of array excluding elements dropped from the beginning.
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* Elements are dropped until predicate returns falsey.
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* The predicate is invoked with three arguments: (value, index, array).
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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 to query
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* @param {ListIteratee<T>} [predicate=identity] - The function invoked per iteration
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* @returns {T[]} Returns the slice of array
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*
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* @example
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* dropWhile([1, 2, 3], n => n < 3)
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* // => [3]
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*
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* dropWhile([{ a: 1, b: 2 }, { a: 1, b: 3 }], { a: 1 })
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* // => []
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*
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* dropWhile([{ a: 1, b: 2 }, { a: 1, b: 3 }], ['a', 1])
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* // => []
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*
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* dropWhile([{ a: 1, b: 2 }, { a: 1, b: 3 }], 'a')
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* // => []
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*/
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function dropWhile(arr, predicate = identity) {
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if (!isArrayLike(arr)) return [];
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return dropWhileImpl(toArray(arr), predicate);
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}
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function dropWhileImpl(arr, predicate) {
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switch (typeof predicate) {
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case "function": return dropWhile$1(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 dropWhile$1(arr, matchesProperty(key, value));
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} else return dropWhile$1(arr, matches(predicate));
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case "number":
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case "symbol":
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case "string": return dropWhile$1(arr, property(predicate));
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}
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}
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//#endregion
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export { dropWhile };
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