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How to toggle between adding and removing a class name from an element with JavaScript?
To toggle between adding and removing a class name from an element with JavaScript, the code is as follows −
Example
<!DOCTYPE html> <html> <head> <meta name="viewport" content="width=device-width, initial-scale=1" /> <style> .newStyle { font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif; width: 100%; padding: 25px; background-color: rgb(147, 80, 255); color: white; font-size: 25px; box-sizing: border-box; text-align: center; } </style> </head> <body> <h1>Adding className with JavaScript Example</h1> <button class="btn">Click here</button> <h2>Click the above button to add className to below div</h2> <div id="sampleDiv"> This is a DIV element. </div> <script> document.querySelector(".btn").addEventListener("click", addClassName); function addClassName() { var element = document.getElementById("sampleDiv"); element.classList.toggle("newStyle"); } </script> </body> </html> Output
The above code will produce the following output −
On clicking the “Click here” button −
Updated on: 2020-05-08T13:29:47+05:30
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