Question 1

What is the JavaScript Playground?

Accepted Answer

The JavaScript Playground is a free online tool where you can write JavaScript code and run it directly in your browser. It captures console.log output and shows results instantly.

Question 2

Is my code sent to a server?

Accepted Answer

No. All JavaScript code runs entirely in your browser using Function constructor. Nothing is ever sent to any server.

Question 3

Can I use modern JavaScript features?

Accepted Answer

Yes. Since the code runs in your browser, you can use any JavaScript features your browser supports, including ES2024+ features like optional chaining, nullish coalescing, and more.

Question 4

How do I see console output?

Accepted Answer

All console.log, console.warn, console.error, and console.info outputs are captured and displayed in the console panel on the right. The return value of your code is also shown.