Web/API/GlobalEventHandlers/onmousemove

The onmousemove property of the GlobalEventHandlers mixin is an EventHandler that processes mousemove events.

The mousemove event fires when the user moves the mouse.

Syntax

target.onmousemove = functionRef;

Value

functionRef is a function name or a function expression. The function receives a MouseEvent object as its sole argument.

Examples

Tooltips

This example creates link tooltips that follow your mouse. It uses the onmousemove, onmouseover, and onmouseout event handlers.

HTML

<p><a href="#" data-tooltip="First link">See a tooltip here &hellip;</a></p>
<p><a href="#" data-tooltip="Second link">&hellip; or here!</a></p>

CSS

.tooltip {
  position: absolute;
  z-index: 9999;
  padding: 6px;
  background: #ffd;
  border: 1px #886 solid;
  border-radius: 5px;
}

JavaScript

const tooltip = new (function() {
  const node = document.createElement('div');
  node.className = 'tooltip';
  node.setAttribute('hidden', '');
  document.body.appendChild(node);

  this.follow = function(event) {
    node.style.left = event.clientX + 20 + 'px';
    node.style.top = event.clientY + 10 + 'px';
  };

  this.show = function(event) {
    node.textContent = event.target.dataset.tooltip;
    node.removeAttribute('hidden');
  };

  this.hide = function() {
    node.setAttribute('hidden', '');
  };
})();

const links = document.querySelectorAll('a');

links.forEach(link => {
  link.onmouseover = tooltip.show;
  link.onmousemove = tooltip.follow;
  link.onmouseout = tooltip.hide;
});

Result

Draggable elements

We also have an example available showing the use of the onmousemove event handler with draggable objects — view the example in action.

Specifications

Specification	Status	Comment
HTML Living StandardThe definition of 'onmousemove' in that specification.	Living Standard

Browser compatibility

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`onmousemove`	Chrome Full support Yes	Edge Full support 12	Firefox Full support Yes	IE Full support Yes	Opera Full support Yes	Safari Full support Yes	WebView Android Full support Yes	Chrome Android Full support Yes	Firefox Android Full support Yes	Opera Android Full support Yes	Safari iOS Full support Yes	Samsung Internet Android Full support Yes

Legend

Full support: Full support