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I am trying to get the position of the click when the user click whatever part of the window. I found this code in many tutorials but it seems not to work.

(function( $ ) {
    $( document ).ready(function() {

        $( window ).click(function( e ) {
            var offset = $(this).offset(),
                relativeX = (e.pageX - offset.left),
                relativeY = (e.pageY - offset.top);

                alert("X: " + relativeX + "  Y: " + relativeY);
        });
    });
})( jQuery );

Firefox console tells me "TypeError: offset is undefined" and I don't understand why it does not work.

Which is the right way to retrieve the click position on the window?

I am trying to get the position of the click when the user click whatever part of the window. I found this code in many tutorials but it seems not to work.

(function( $ ) {
    $( document ).ready(function() {

        $( window ).click(function( e ) {
            var offset = $(this).offset(),
                relativeX = (e.pageX - offset.left),
                relativeY = (e.pageY - offset.top);

                alert("X: " + relativeX + "  Y: " + relativeY);
        });
    });
})( jQuery );

Firefox console tells me "TypeError: offset is undefined" and I don't understand why it does not work.

Which is the right way to retrieve the click position on the window?

  • javascript
  • jquery
  • position
  • offset
Share Improve this question asked Apr 23, 2015 at 0:14 ctrlmaniacctrlmaniac 4444 gold badges16 silver badges30 bronze badges
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4 Answers 4

Reset to default 6

That code is really close to working. It will work correctly if you replace $(this) with $(e.target). This will get the left and top offsets of the click event, not the window itself.

(function($) {
    $(document).ready(function() {

        $(window).click(function(e) {
            var relativeX = (e.pageX - $(e.target).offset().left),
                relativeY = (e.pageY - $(e.target).offset().top);

                alert("X: " + relativeX + "  Y: " + relativeY);
        });
    });
})(jQuery);

http://jsfiddle/IronFlare/7wsamt87/

If you're clicking on the window like that, you don't really need an offset.

$(window).click(function (e) {

        alert("X: " + e.pageX + "  Y: " + e.pageY);
    });

Your code is assuming the wrong this;

In your listener, this will be window, but $(window).offset(); makes no sense, which is why the method returns null or undefined.

Perhaps you meant to use document.documentElement, document.body or e.target which would be the <html>, <body> or the clicked node, respectively.

$(document.body).offset();

I hope to have find a solution


function showCoords(event) {
    var x = event.clientX;
    var y = event.clientY;
    var coords = "X coords: " + x + ", Y coords: " + y;
    document.getElementById("demo").innerHTML = coords;
}
<!DOCTYPE html>
<html>
<body>

<h2 onclick="showCoords(event)">Click this heading to get the x (horizontal) and y (vertical) coordinates of the mouse pointer when it was clicked.</h2>

<p><strong>Tip:</strong> Try to click different places in the heading.</p>

<p id="demo"></p>



</body>
</html>

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