Add class to an element

Question

I try to write these code to make grid view through CSS:( jsbin )

   var tables = document.getElementsByClassName(\'tableData\');
    var rows = tables[0].getEle         


        

Answer 1

Two years later (2012/06), there is a new and shiny approach - element.classList with methods add(), remove(), toggle(), contains().

rows[i].classList.add("alt");

Supported by

• Chrome 8+
• Firefox 3.6+
• Internet Explorer 10+
• Opera 11.50+
• Safari 5.1+