JavaScript Comments Explained: Single Line vs Multi-Line | JavaScript Tutorial #44 (2026)
Coding isn't just about making things work—it's about making your code readable! In Lesson 44, we dive into JavaScript Comments.
Just like HTML and CSS, JavaScript allows you to leave notes in your code that the browser will ignore. Whether you're debugging a tricky error or documenting a complex function for your future self, comments are an essential tool for any developer. We'll show you the syntax for single-line and multi-line comments and share best practices for when and why to use them.
📌 Timestamps:
0:00:00 Intro: Why use comments in JavaScript?
0:00:36 Single Line Comments (//) Explained
0:01:08 How commenting out code affects your output
0:01:25 Multi-Line Comments (/* */) for blocks of code
0:02:10 Syntax breakdown: Opening and Closing multi-line comments
0:02:40 Documentation Best Practices: Coding for your "Future Self"
0:03:05 Summary & Next Steps
Good code is documented code. Master these simple shortcuts to make your scripts professional and easy to maintain.
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