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Change an element's class with JavaScript

user8183
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user8183 Published in September 20, 2018, 1:14 pm

How can I change a class of an HTML element in response to an onClick event using JavaScript?

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    "The class attribute is mostly used to point to a class in a style sheet. However, it can also be used by a JavaScript (via the HTML DOM) to make changes to HTML elements with a specified class." -w3schools.com/tags/att_standard_class.asp – Triynko Apr 7 '11 at 18:11
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    element.setAttribute(name, value); Replace name with class. Replace value with whatever name you have given the class, enclosed in quotes. This avoids needing to delete the current class and adding a different one. This jsFiddle example shows full working code. – Sandy Good May 18 '14 at 4:59
  • For changing a class of HTML element with onClick use this code: <input type='button' onclick='addNewClass(this)' value='Create' /> and in javascript section: function addNewClass(elem){ elem.className="newClass"; } Online – Iman Bahrampour Aug 22 '17 at 4:13

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