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Event.keyCode always return 'undefined' in .on('input')

in Using jQuery • 9 years ago

Hello guys,

I was wondering to create a ticket to report a bug, but I read that I need ask here first, so here I'm. I have a specific problem in the startup I'm working on that is solved by the following jQuery method:

.on('input', function(){ });

The 'input' event trigger every action inside an input or textarea (copy, paste, focus, keyup [I think]). The thing is: I didn't want an alternative to this method, I already solved my problem using a 'quick fix', I just want know why the following doesn't work or why this isn't implemented.

I need get the keycode (or 'which') when this event is fired, but this doesn't work - always return undefined, no matter the circustances. Following is the code I'm using to test this:

var input = jQuery("#post-input");
input.on('input', function(event){
setTimeout(function(){
eventKeyCode = window.event ? event.keyCode : event.which;
console.log(eventKeyCode);
}, 200);
});

You can also see my fiddle here.

Why this doesn't work / is implemente yet?

Replies(6)

jakecigar

Re: Event.keyCode always return 'undefined' in .on('input')

9 years ago

Use the keyup event for best compatibility… http://jsfiddle.net/jakecigar/uBZF9/13/

You always get the event that is passed by jQuery as a parameter. And, you always reference event.which.

JΛ̊KE

paladinif

Re: Event.keyCode always return 'undefined' in .on('input')

9 years ago

But "keyup" don't fire every action that can be done inside textarea / input. Actions like copy, mouse click inside the field, focus, etc.

Also, keyup doesn't solve my problem, I need use 'input', as I already said. If I use 'keyup propertychange' and other events together they make my field very slow comparing to input. Please, I don't want an alternative solution, I want 'on input' solution.

Anyone can implement event.which in this trigger?

jakecigar