Check if an element contains a class in JavaScript?

Question

Using plain JavaScript (not jQuery), Is there any way to check if an element contains a class?

Currently, I\'m doing this:

Answer 1

This is a bit off, but if you have an event that triggers switch, you can do without classes:

You can do

$('body').click( function() {

    switch ( this.id.replace(/[0-9]/g, '') ) {
        case 'classOne': this.innerHTML = "I have classOne"; break;
        case 'classTwo': this.innerHTML = "I have classTwo"; break;
        default: this.innerHTML = "";
    }

});

.replace(/[0-9]/g, '') removes digits from id.

It is a bit hacky, but works for long switches without extra functions or loops