The “enter” key is represent by code “13”, check this ASCII charts.
To check if an “enter” key is pressed inside a textbox, just bind the keypress() to the textbox.
$('#textbox').keypress(function(event){
var keycode = (event.keyCode ? event.keyCode : event.which);
if(keycode == '13'){
alert('You pressed a "enter" key in textbox');
}
});
To check if an enter key is pressed on page, bind the keypress() to the jQuery $(document).
$(document).keypress(function(event){
var keycode = (event.keyCode ? event.keyCode : event.which);
if(keycode == '13'){
alert('You pressed a "enter" key in somewhere');
}
});
P.S In Firefox, you have to use event.which to get the keycode; while IE support both event.keyCode and event.which.
Try it yourself
<html>
<head>
<script type="text/javascript" src="jquery-1.4.2.min.js"></script>
</head>
<body>
<h1>Check if "enter" is pressed with jQuery</h1>
<label>TextBox : </label>
<input id="textbox" type="text" size="50" />
<script type="text/javascript">
$('#textbox').keypress(function(event){
var keycode = (event.keyCode ? event.keyCode : event.which);
if(keycode == '13'){
alert('You pressed a "enter" key in textbox');
}
event.stopPropagation();
});
$(document).keypress(function(event){
var keycode = (event.keyCode ? event.keyCode : event.which);
if(keycode == '13'){
alert('You pressed a "enter" key in somewhere');
}
});
</script>
</body>
</html>
Thanks very much
what is
event.stopPropagation();
?
Thanks. Very well explained
Thanks.
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hello, mkyong
nice and simple tutorial..
You can provide more in detail key code for the key event to the reader can understand, and also the combination of the key like..
$(document).keypress(function(event) {
if ((event.which == 115 && (event.ctrlKey||event.metaKey)|| (event.which == 19)) {
event.preventDefault();
// do stuff
return false;
}
return true;
});
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Thanks!
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There is certainly a lot to learn about this
issue. I really like all of the points you’ve made.
Why store the key code in a variable if you can just:
function(event){if(event.keyCode ? event.keyCode : event.which == 13)enterKeyPressed();}Personally I’d prefer not to use jQuery and just:
Help me! I use this keypress to check captcha. For test, i type a character then alert() it, but i can not get the character i type. For example, i type “a”, alert() no thing, i continous type “b” (now i have “ab”) but alert() show “a” only @@
i like your website it help me all the time 🙂
very helpful website
Thanks for making this page, I needed a refresher….
One thing I have a gripe with though – treating the keycode as a string, as in:
it would be more correct (and faster) if the keycode was treated as the number it is:
does not work on localhost using wampserver ……….
Its browser dependent and has nothing to do with the server its running on. So you just have an error guy.