Web Reference: If your code "does nothing", the console often tells you why. Normally (otherwise follow the steps at the bottom of this page), you activate debugging in your browser with the F12 key, and select Console in the debugger menu. If you do only one thing: always check the console when something fails. Jul 11, 2025 · 1. Built-in Debugging Tools Modern browsers provide built-in JavaScript debuggers, accessible via Developer Tools. Debuggers can be turned on and off, forcing errors to be reported. They allow setting breakpoints and examining variables while code executes. Steps to Activate Debugging: Chrome: Open "More tools" → "Developer tools" → Select ... In this tutorial, you will learn about debugging in JavaScript with the help of examples.
YouTube Excerpt: If you're still using console.log() to find and fix
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