JavaScript access CSS class by its name?

Question

I have to access CSS class by name, and the code below works. However if I try hui[\"myclass\"] or hui[\".myclass\"] instead of hui[0]

Answer 1

To access the class from javascript you just need to create a classist, if it's not there.

document.querySelector("myDiv").classList.add("className");

This adds the new class to the div with the specified class name.

Else:

document.querySelector(".className");