How to Debug JavaScript in Chrome: The Ultimate Step-by-Step Guide (2026)
Master JavaScript debugging with this complete workflow using Chrome Developer Tools! In this tutorial, we move beyond console.log and learn how to use breakpoints, step through code execution, and fix logic errors in real-time. Whether you're a beginner or looking to sharpen your frontend skills, this guide covers everything you need to squash bugs faster.
🚀 Resources & Code:
(Insert your direct source code link here as requested)
📌 What You Will Learn:
How to reproduce consistent bugs.
Setting up event listener and line-of-code breakpoints.
Stepping into vs. stepping over functions.
Watching variable values and using the Console drawer.
Timestamps:
[00:00] - Intro: Why you need a proper Debugging Workflow
[01:06] - The 6 Steps to Fixing any JS Bug
[03:28] - Step 1: How to Reproduce the Bug (Consistent Actions)
[05:37] - Step 2: Pausing Code with Breakpoints (Sources Tab)
[09:15] - Step 3: Stepping Through Code (Line-by-Line Execution)
[13:52] - Step 4: Setting Specific Line-of-Code Breakpoints
[17:25] - Step 5: Checking Variable Values (Watch Expressions)
[23:43] - Step 6: Applying the Fix & Persistent Changes
[30:33] - Final Review & Clean Console Check
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