Hello World in JavaScript

One console.log. If this prints, Node or the browser console is actually working.

BeginnerBasic ProgramsExample 1 of 10
hello-world.js
1// The simplest JavaScript program
2console.log("Hello World");

Output

Hello World

What's going on

console.log("Hello World") is the whole program. No main, no class.

In the browser it shows up in DevTools (F12), not on the page. That confuses everyone once.

In Node: node hello.js. Same text, different window.