Published at
Updated at
Reading time
1min
This post is part of my Today I learned series in which I share all my web development learnings.

Yoshua Wuyts tweeted that var let = 12 is valid JavaScript. Wat? It turns out let is no reserved word in JavaScript. If you want to dig deeper there is an interesting read on this topic, that was recently released on the Bocoup blog.

Edited: Turns out this is only true in sloppy mode. Thanks Robin!

If you enjoyed this article...

Join 5.5k readers and learn something new every week with Web Weekly.

Web Weekly — Your friendly Web Dev newsletter
Reply to this post and share your thoughts via good old email.
Stefan standing in the park in front of a green background

About Stefan Judis

Frontend nerd with over ten years of experience, freelance dev, "Today I Learned" blogger, conference speaker, and Open Source maintainer.

Related Topics

Related Articles