mirror of
https://github.com/tenrok/OverlayScrollbars.git
synced 2026-05-28 23:54:06 +03:00
Rene
53 lines
2.3 KiB
TypeScript
53 lines
2.3 KiB
TypeScript
import { keys } from 'support/utils/object';
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import { isArrayLike } from 'support/utils/types';
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import { PlainObject } from 'typings';
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/**
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* Iterates through a array or object
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* @param arrayLikeOrObject The array or object through which shall be iterated.
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* @param callback The function which is responsible for the iteration.
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* If the function returns true its treated like a "continue" statement.
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* If the function returns false its treated like a "break" statement.
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*/
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export function each<T>(
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array: Array<T> | ReadonlyArray<T>,
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callback: (value: T, indexOrKey: number, source: Array<T>) => boolean | void,
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): Array<T> | ReadonlyArray<T>;
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export function each<T>(
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array: Array<T> | ReadonlyArray<T> | null,
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callback: (value: T, indexOrKey: number, source: Array<T>) => boolean | void,
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): Array<T> | ReadonlyArray<T> | null;
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export function each<T>(
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arrayLikeObject: ArrayLike<T>,
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callback: (value: T, indexOrKey: number, source: ArrayLike<T>) => boolean | void,
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): ArrayLike<T>;
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export function each<T>(
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arrayLikeObject: ArrayLike<T> | null,
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callback: (value: T, indexOrKey: number, source: ArrayLike<T>) => boolean | void,
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): ArrayLike<T> | null;
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export function each(obj: PlainObject, callback: (value: any, indexOrKey: string, source: PlainObject) => boolean | void): PlainObject;
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export function each(obj: PlainObject | null, callback: (value: any, indexOrKey: string, source: PlainObject) => boolean | void): PlainObject | null;
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export function each<T>(
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source: ArrayLike<T> | PlainObject | null,
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callback: (value: T | any, indexOrKey: any, source: any) => boolean | void,
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): Array<T> | ReadonlyArray<T> | ArrayLike<T> | PlainObject | null {
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if (isArrayLike(source)) {
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for (let i = 0; i < source.length; i++) {
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if (callback(source[i], i, source) === false) {
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break;
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}
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}
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} else if (source) {
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each(keys(source), (key) => callback(source[key], key, source));
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}
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return source;
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}
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/**
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* Returns the index of the given inside the given array or -1 if the given item isn't part of the given array.
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* @param arr The array.
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* @param item The item.
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* @param fromIndex The array index at which to begin the search. If fromIndex is omitted, the search starts at index 0.
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*/
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export const indexOf = <T = any>(arr: Array<T>, item: T, fromIndex?: number): number => arr.indexOf(item, fromIndex);
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