Answers for "replace class in js"

8

change elements class javascript

document.getElementById("MyElement").classList.add('MyClass');

document.getElementById("MyElement").classList.remove('MyClass');

if ( document.getElementById("MyElement").classList.contains('MyClass') )
{
document.getElementById("MyElement").classList.toggle('MyClass');
}
Posted by: Guest on July-06-2020
3

change class javascript

Syntax:
document.getElementById('myElement').className = "myclass";

<html> 
    <head> 
        <title>Change class of an element with javascript</title> 
        <style type="text/css"> 
            .redbutton{ 
                background-color: red; 
            } 
            .greenbutton{ 
                background-color: green; 
            } 
        </style> 
        <script type="text/javascript"> 
            function changeClass() { 
                document.getElementById('clickme').className = "greenbutton"; 
                var new_class = document.getElementById('clickme').className; 
                document.getElementById('classChange').innerHTML = "New Class Name : "  
                + new_class; 
            } 
        </script> 
    </head> 
    <body> 
        <button class="redbutton" id="clickme" onclick="changeClass()" 
                    >Change Class</button><br> 
        <p id="classChange">Class Name: redbutton</p> 
    </body> 
</html>
Posted by: Guest on April-21-2020

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