Question

I have two arrays. One looks like this:

var array_one = [".a", ".b", ".c", ".d"];

.a, .b, .c & .d are CSS-classes that can be found in the DOM.

Then I got another array array_two which holds all elements with class .lorem currently in the DOM.

Now how do I find the elements that have .a, .b, .c or .d and .lorem by comparing the two arrays?

Answer 1

You can use the jQuery’s filter() method, coupled with Array’s join();

$(array_two).filter(array_one.join(","));