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JavaScript - wheel event example

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Created by:
Blythe-F
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In this article, we would like to show you onwheel event example in JavaScript.

Quick solution:

var myElement = document.querySelector('#my-element');

myElement.addEventListener('wheel', function() {
    console.log('onwheel event occurred.');
});

or:

<div onwheel="handleWheel()"> div body here... </div>

or:

var myElement = document.querySelector('#my-element');

myElement.onwheel= function() {
    console.log('onwheel event occurred.');
};

 

Practical examples

There are three common ways how to use onwheel event:

  • with event listener,
  • with element¬†attribute,
  • with element property.

1. Event listener based example

In this section, we want to show how to use onwheel event on div element via event listener mechanism.

// ONLINE-RUNNER:browser;

<!doctype html>
<html>
  <head>
    <style>
      body {
        height: 100px;
      }
      #my-div {
        overflow: scroll;
        height: 300px;
        background: lightgray;
      }
    </style>
  </head>
  <body>
    <div id="my-div">Scroll the div element.</div>
    <script>
      var myDiv = document.querySelector('#my-div');
      myDiv.addEventListener("wheel", handleWheel);

      function handleWheel(){
        console.log('onwheel event occurred.');
      }
    </script>
  </body>
</html>

2. Attribute based example

In this section, we want to show how to use onwheel event on div element via attribute.

// ONLINE-RUNNER:browser;

<!doctype html>
<html>
  <head>
    <style>
      body {
        height: 100px;
      }
      div {
        overflow: scroll;
        height: 300px;
        background: lightgray;
      }
    </style>
  </head>
  <body>
    <div onwheel="handleWheel()">Scroll the div element.</div>
    <script>
      function handleWheel(){
        console.log('onwheel event occurred.');
      }
    </script>
  </body>
</html>

3. Property based example

In this section, we want to show how to use onwheel event on div element via property.

// ONLINE-RUNNER:browser;

<!doctype html>
<html>
  <head>
    <style>
      body {
        height: 100px;
      }
      #my-div {
        overflow: scroll;
        height: 300px;
        background: lightgray;
      }
    </style>
  </head>
  <body>
    <div id="my-div">Scroll the div element.</div>
    <script>
      var myDiv = document.querySelector("#my-div");
      myDiv.onwheel = function (){
        console.log('onwheel event occurred.');
      }
    </script>
  </body>
</html>

JavaScript - events

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