DEV Community πŸ‘©β€πŸ’»πŸ‘¨β€πŸ’»

Cover image for How to avoid problems on your javaScript code.
Nnaji David
Nnaji David

Posted on

How to avoid problems on your javaScript code.

Avoid problems

Why did we go over these examples? Should we remember these peculiarities all the time? Well, not really. Actually, these tricky things will gradually become familiar over time, but there’s a solid way to avoid problems with them:

Treat any comparison with undefined/null except the strict equality

===
Enter fullscreen mode Exit fullscreen mode

with exceptional care.
Don’t use comparisons

>= > < <=
Enter fullscreen mode Exit fullscreen mode

with a variable which may be null/undefined, unless you’re really sure of what you’re doing. If a variable can have these values, check for them separately.

Top comments (0)

🌚 Life is too short to browse without dark mode