All / JavaScript
JavaScript

Function

Reusable code.

💡 THINK OF IT LIKE…
▸ YOUR TURN

Write function add(a, b) { return a + b; }

fn.js
+90 XP
Tab indent · Shift+Tab outdent · ⌘/Ctrl + Enter submit · auto-pairs ( [ { " '
▶ Output (javascript)
Click 'Run code' to execute your code in a real sandbox.