Edit fiddle - JSFiddle - React, Tailwind, and code Playground

JSFiddle - React, Tailwind, and code Playground

JavaScript

let originalString = 'hello';
let modifiedString = originalString.concat(' world');
console.log('originalString:', originalString);
console.log('modifiedString:', modifiedString);

let originalString2 = 'hello';
let modifiedString2 = originalString2 += ' world';
console.log('originalString2:', originalString2);
console.log('modifiedString2:', modifiedString2)

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JSFiddle - React, Tailwind, and code Playground

JavaScript

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Join the 4+ million users, and keep the JSFiddle dream alive.

Ad-free

Use pre-released features

Fiddle collections

Private collections and fiddles

Console