How to getElementByClass instead of GetElementById with JavaScript?

Question

I\'m trying to toggle the visibility of certain DIV elements on a website depending on the class of each DIV. I\'m using a basic JavaScript snippet to toggle them. The probl

Answer 1

document.getElementsByClassName('CLASSNAME')[0].style.display = 'none';

Acyually by using getElementsByClassName, it returns an array of multiple classes. Because same class name could be used in more than one instance inside same HTML page. We use array element id to target the class we need, in my case, it's first instance of the given class name.So I've used [0]