mirror of
https://github.com/tenrok/OverlayScrollbars.git
synced 2026-05-17 08:09:40 +03:00
Rene Haas
73 lines
2.5 KiB
JavaScript
73 lines
2.5 KiB
JavaScript
import { isArrayLike, isString } from './types';
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export function each(source, callback) {
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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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}
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else if (source) {
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// cant use support func keys here due to circular dep
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each(Object.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 = (arr, item, fromIndex) => arr.indexOf(item, fromIndex);
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/**
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* Pushesh all given items into the given array and returns it.
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* @param array The array the items shall be pushed into.
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* @param items The items which shall be pushed into the array.
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*/
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export const push = (array, items, arrayIsSingleItem) => {
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!arrayIsSingleItem && !isString(items) && isArrayLike(items)
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? Array.prototype.push.apply(array, items)
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: array.push(items);
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return array;
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};
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/**
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* Creates a shallow-copied Array instance from an array-like or iterable object.
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* @param arr The object from which the array instance shall be created.
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*/
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export const from = (arr) => {
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const original = Array.from;
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const result = [];
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if (original && arr) {
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return original(arr);
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}
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if (arr instanceof Set) {
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arr.forEach((value) => {
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push(result, value);
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});
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}
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else {
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each(arr, (elm) => {
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push(result, elm);
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});
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}
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return result;
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};
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/**
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* Check whether the passed array is empty.
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* @param array The array which shall be checked.
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*/
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export const isEmptyArray = (array) => !!array && array.length === 0;
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/**
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* Calls all functions in the passed array/set of functions.
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* @param arr The array filled with function which shall be called.
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* @param args The args with which each function is called.
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* @param keep True when the Set / array should not be cleared afterwards, false otherwise.
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*/
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export const runEachAndClear = (arr, args, keep) => {
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// eslint-disable-next-line prefer-spread
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const runFn = (fn) => fn && fn.apply(undefined, args || []);
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each(arr, runFn);
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!keep && (arr.length = 0);
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};
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//# sourceMappingURL=array.js.map
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