javascript : domElement .addClass(className)
javascript : domElement .addClass( className ) Target: Applicable with any DOM element. getElementById getElementsByTagName getElementsByClassName getElementsByName querySelector querySelectorAll Description : add givent className to element(s) classList. Note: after adding class of element/elements list it return itself for further processing. Syntax: DOMElement.addClass(' className ') DOMNodeList.addClass(' className ') HTMLCollection.addClass(' className ') Usase: document.getElementById('firstDiv').addClass(' myClass ') it add 'myClass' to the div having id firstDiv and return firstDiv element document.getElementsByTagName('div').addClass(' myClass ') the getElementsByTagName selects all div and addClass() method add class name 'myClass' to all divs and return getElementsByTagName result for further processing you do not need to execute selector again. document.getElementsByClassName('FirstDiv').addCl...