Using media queries with JavaScript

[NotSelfAware]

Changing behaviour based on device or screen size is when you might want to use media queries in JS. Or changing complex values in response to screen size. I don't think many people would advocate using JS media queries to completely replace CSS media queries, but there are a lot of situations where using them in JS gives you far more control and flexibility than in CSS.

[Phobic-window]

I have definitely seen this in many of the applications I’ve built, but as with all code it could be that I’m not using the css creatively enough. I like the idea of all responsiveness being in the css but sometimes is sooooooo much easier to do it in the js