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HTML | DOM MouseEvent clientX Property

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  • Last Updated : 30 Jan, 2019
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The MouseEvent clientX property is a read-only property which is used to return the horizontal coordinate of the mouse pointer based on the current window when a mouse event was triggered.



Return Value: It returns a number which represents the vertical coordinate of the mouse pointer in pixels.

Below program illustrates the MouseEvent clientX property :

Finding out the horizontal coordinates of the mouse pointer when the mouse button is clicked on an element.

<!DOCTYPE html>
    <title>MouseEvent clientX Property</title>
        h1 {
            color: green;
        h2 {
            font-family: Impact;
        body {
            text-align: center;
    <h2>MouseEvent clientX Property</h2>
    <p onclick="coord(event)">To get the x of the mouse pointer,
      click on this paragraph. </p>
    <p id="gfg"></p>
        function coord(event) {
            var getXCoord = event.clientX;
            var result = "X coordinate: " + getXCoord;
            document.getElementById("gfg").innerHTML = result;


After clicking on the paragraph:

Supported Web Browsers:

  • Opera
  • Internet Explorer
  • Google Chrome
  • Firefox
  • Apple Safari

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