Clone an array
Written byPhuoc Nguyen
Created
07 May, 2020
Last updated
27 Jun, 2022
Category
Array
Contributors
JavaScript version
clone.js
// `arr` is an array
const clone = (arr) => arr.slice(0);
// Or
const clone = (arr) => [...arr];
// Or
const clone = (arr) => Array.from(arr);
// Or
const clone = (arr) => arr.map((x) => x);
// Or
const clone = (arr) => JSON.parse(JSON.stringify(arr));
// Or
const clone = (arr) => arr.concat([]);
// Or
const clone = (arr) => structuredClone(arr);TypeScript version
clone.ts
// `arr` is an array
const clone = <T,_>(arr: T[]): T[] => arr.slice(0);
// Or
const clone = <T,_>(arr: T[]): T[] => [...arr];
// Or
const clone = <T,_>(arr: T[]): T[] => Array.from(arr);
// Or
const clone = <T,_>(arr: T[]): T[] => arr.map((x) => x);
// Or
const clone = <T,_>(arr: T[]): T[] => JSON.parse(JSON.stringify(arr));
// Or
const clone = <T,_>(arr: T[]): T[] => arr.concat([]);
// Or
const clone = <T,_>(arr: T[]): T[] => structuredClone(arr);
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Phước Nguyễn