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 Introducing the Practice

Posted by Erica Saunders
.a{fill-rule:evenodd;}techdegree seal-36
Erica Saunders
Full Stack JavaScript Techdegree Graduate 16,234 Points

How do you determine when to use "let" vs. "var" in loops?

How do you determine when to use "let" vs. "var" in loops?

2 Answers

Heather Gray
Heather Gray
6,225 Points
Heather Gray
Heather Gray
6,225 Points

Var should not be used anymore in 99.9% of code. It's old and outdated and has no place in modern JavaScript except in limited cases most people won't encounter.

Seth Robinson
Seth Robinson
2,511 Points
Seth Robinson
Seth Robinson
2,511 Points

That's unfortunate that the JavaScript Basics course ONLY teaches var LOL.

KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,968 Points
KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,968 Points

Interesting article on let and var in loops