Comments on: .keydown()

By: Mahaq77

Mahaq77 — Thu, 06 Jan 2011 02:44:09 +0000

How to prevent the user from using “ENTER” key in quick succession on a text field. On first time using “ENTER” key my form saves, but on using it in quick succession (more than one hit) it crashes.

Can anybody provide me a quick solution…

By: Liel Dulev

Liel Dulev — Mon, 18 Oct 2010 15:09:37 +0000

I should note that you are able to get the right charCode (!) for most languages in FF using the keypress event. But due to the major difference in behavior between browsers regarding event raising of key pressed using this method is a bit tricky/hackable.

By: Liel Dulev

Liel Dulev — Mon, 18 Oct 2010 07:09:37 +0000

By: Liel Dulev

Liel Dulev — Sun, 17 Oct 2010 10:07:16 +0000

It seems that firefox 3.6 & chrome 6 (on mac OS X 10.5) always return 0 as keycode for non-english chars. Safari returns the right code, in any language.

This is important because your user's default language might be set to something else.

By: Addy Osmani

Addy Osmani — Tue, 12 Oct 2010 00:57:11 +0000

Here's a very quick example I coded up where you can see textarea working fine with the keydown event in FireFox: http://jsfiddle.net/addyosmani/xEfSD/

By: rajan

rajan — Mon, 11 Oct 2010 02:11:41 +0000

i have a textarea that i add keydown event but this is not work in firefox.

By: Szalski

Szalski — Fri, 08 Oct 2010 16:44:22 +0000

Wouldn't something like this work ?

var event = $.Event('click');
event.shiftKey = true;
$('selector').trigger(event);

I am using this to test my code based on specific interactions (fake). Should work with .which...

By: Joshua

Joshua — Tue, 28 Sep 2010 00:43:34 +0000

You cannot easily change values in the event object (probably for security reasons), but you might be able to copy and extend it:

var faketab=$.extend({},event,{which:9, keyCode: 9}; 
faketab.which == 9;

However, a safer choice is to decouple your code:


$('#target').keypress(function(event) {
    fireWhich(event.which, event.ctrlKey, event.shiftKey);
});

So you can call fireWhich directly:

fireWhich(13); //simulate Enter key
fireWhich(9, false, true); //simulate SHIFT+TAB key

This will not, however, make the focus go to the previous form item like a real SHIFT+TAB keystoke would do.

By: Karl Swedberg

Karl Swedberg — Sun, 29 Aug 2010 22:49:20 +0000

You would check for event.shiftKey:
if ( event.which == 13 && event.shiftKey ) {
// do something
}

check out the demo above for event properties that are available on keydown.

By: david_king

david_king — Sun, 29 Aug 2010 10:31:00 +0000

I’m trying to override the event object to contain data of my choosing so I can choose the value of “which”, but am having no luck so far…