Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

JavaScript JavaScript Numbers Working with Numbers Convert Strings to Numbers

Posted by Rupert Travers
Rupert Travers
4,652 Points

Commenting out multiple lines of JS using //

How does Guil quickly comment out multiple lines of JS using // (some sort of keyboard shortcut I presume) ?

Forrest Pollard
Forrest Pollard
1,988 Points
Forrest Pollard
Forrest Pollard
1,988 Points

dude i was wondering the same thing thanks for posting this so i didnt have to do it myself and wait for an answer haha

Nik Oaks
Nik Oaks
8,056 Points
Nik Oaks
Nik Oaks
8,056 Points

This is so funny I was blown away when he added 5 comments in 2 seconds.

4 Answers

Noelle Szombathy
Noelle Szombathy
10,043 Points
Noelle Szombathy
Noelle Szombathy
10,043 Points

highlight all the lines then: command + / on mac or ctrl + / on windows

Andrew McKinnon
Andrew McKinnon
2,439 Points
Andrew McKinnon
Andrew McKinnon
2,439 Points

thank you, i was wondering the same thing

Victor Mercier
Victor Mercier
14,667 Points
Victor Mercier
Victor Mercier
14,667 Points

Hi, you can just select all the lines you want to comment or uncomment and then, do the following:

On Windows: ctrl + / On Mac: cmd + /

If that helped you, please mark as best answer to indicate other students your issue is resolved!

Alexis Perez
Alexis Perez
1,093 Points
Alexis Perez
Alexis Perez
1,093 Points

Hi! there is 2 ways of comment by keyboard shortcut:

1 - Select the text to want to comment and then press 3 keys: "ctrl" "+" "/" (type it at the same time without the ""). This way you will comment it out with //

2 - Select the text to want to comment and then press 3 keys: "ctrl" "shift" "/" (type it at the same time without the ""). This way you will comment it out with /* */

Doug McGillivray
Doug McGillivray
4,467 Points
Doug McGillivray
Doug McGillivray
4,467 Points

I knew this would be here... thank you!