51 lines
2.0 KiB
JavaScript
51 lines
2.0 KiB
JavaScript
const require_dropWhile = require("../../array/dropWhile.js");
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const require_identity = require("../../function/identity.js");
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const require_toArray = require("../_internal/toArray.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/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 = require_identity.identity) {
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if (!require_isArrayLike.isArrayLike(arr)) return [];
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return dropWhileImpl(require_toArray.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 require_dropWhile.dropWhile(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_dropWhile.dropWhile(arr, require_matchesProperty.matchesProperty(key, value));
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} else return require_dropWhile.dropWhile(arr, require_matches.matches(predicate));
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case "number":
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case "symbol":
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case "string": return require_dropWhile.dropWhile(arr, require_property.property(predicate));
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}
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}
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//#endregion
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exports.dropWhile = dropWhile;
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