how to change html class in wordpress

Question

JavaScript

Good afternoon,
I am making an online store on wordpress and it became necessary to make 1 category per line, while leaving 4 products per line inside the category. The standard tool changes both categories and products at once (pictured).
Tried to replace columns-4 class with columns-1 via javascript but nothing changes. When changing the class manually through devtools, everything works.
Thank you in advance.

Answer 1

jQuery

$('.product').removeClass('columns-4');
$('.product').addClass('columns-1);

+ see if the script is connected on the page