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JavaScript

Posted by Andrew Dickens
Andrew Dickens
18,352 Points

.on() Can we use other event shorthand or are we stuck with 'click'?

...from http://api.jquery.com/

""Any event names can be used for the events argument. jQuery will pass through the browser's standard JavaScript event types, calling the handler function when the browser generates events due to user actions such as click"""

But when I use 'hover' or 'toggle' nothing happens, What am I doing wrong

$('#circle1').on('hover', function(){ $(this).addClass('new-class2'); })

3 Answers

Ken jones
Ken jones
5,394 Points

Support for 'hover' within jQuery's .on() method was deprecated in 1.8 and removed in 1.9.

I think you have to use mouseenter and mouseleave now.

Or just use the .hover(); method.

Jonathan Grieve
MOD
Jonathan Grieve
Treehouse Moderator 91,254 Points
Jonathan Grieve
Jonathan Grieve
Treehouse Moderator 91,254 Points

If I remember correctly with the hover event you need to provide 2 callback functions as arguments. The state change when you hover over the element and the state change when you hover out.

Here's the docs for the hover() method. https://api.jquery.com/hover/ :-)

Andrew Dickens
Andrew Dickens
18,352 Points
Andrew Dickens
Andrew Dickens
18,352 Points

Thanks Jonathan,

sure i can get it to work this way

$( '.square' ).hover(
    function() {
        $( this ).addClass( 'new-class2' );
    }, function(){
        $( this ).removeClass( 'new-class2' );
    }
);

But when I use .on() it's still not working, can't see the syntax to separate the two callback functions properly

$('.circle').on('hover', function() {
        $( this ).addClass( 'new-class2' );
    }, function(){
        $( this ).removeClass( 'new-class2' );
    }
);