Is there any event in Jquery that's triggered only if the user hits the enter button in a textbox? Or any plugin that can be added to include this? If not, how would I write a quick plugin that would do this?
This question is related to
javascript
jquery
jquery-events
Another subtle variation. I went for a slight separation of powers, so I have a plugin to enable catching the enter key, then I just bind to events normally:
(function($) { $.fn.catchEnter = function(sel) {
return this.each(function() {
$(this).on('keyup',sel,function(e){
if(e.keyCode == 13)
$(this).trigger("enterkey");
})
});
};
})(jQuery);
And then in use:
$('.input[type="text"]').catchEnter().on('enterkey',function(ev) { });
This variation allows you to use event delegation (to bind to elements you haven't created yet).
$('body').catchEnter('.onelineInput').on('enterkey',function(ev) { /*process input */ });
If your input is search
, you also can use on 'search'
event. Example
<input type="search" placeholder="Search" id="searchTextBox">
.
$("#searchPostTextBox").on('search', function () {
alert("search value: "+$(this).val());
});
heres a jquery plugin to do that
(function($) {
$.fn.onEnter = function(func) {
this.bind('keypress', function(e) {
if (e.keyCode == 13) func.apply(this, [e]);
});
return this;
};
})(jQuery);
to use it, include the code and set it up like this:
$( function () {
console.log($("input"));
$("input").onEnter( function() {
$(this).val("Enter key pressed");
});
});
Here is a plugin for you: (Fiddle: http://jsfiddle.net/maniator/CjrJ7/)
$.fn.pressEnter = function(fn) {
return this.each(function() {
$(this).bind('enterPress', fn);
$(this).keyup(function(e){
if(e.keyCode == 13)
{
$(this).trigger("enterPress");
}
})
});
};
//use it:
$('textarea').pressEnter(function(){alert('here')})
HTML Code:-
<input type="text" name="txt1" id="txt1" onkeypress="return AddKeyPress(event);" />
<input type="button" id="btnclick">
Java Script Code
function AddKeyPress(e) {
// look for window.event in case event isn't passed in
e = e || window.event;
if (e.keyCode == 13) {
document.getElementById('btnEmail').click();
return false;
}
return true;
}
Your Form do not have Default Submit Button
I could not get the keypress
event to fire for the enter button, and scratched my head for some time, until I read the jQuery docs:
"The keypress event is sent to an element when the browser registers keyboard input. This is similar to the keydown event, except that modifier and non-printing keys such as Shift, Esc, and delete trigger keydown events but not keypress events." (https://api.jquery.com/keypress/)
I had to use the keyup
or keydown
event to catch a press of the enter button.
It should be well noted that the use of live()
in jQuery has been deprecated since version 1.7
and has been removed in jQuery 1.9
. Instead, the use of on()
is recommended.
I would highly suggest the following methodology for binding, as it solves the following potential challenges:
document.body
and passing $selector as the second argument to on()
, elements can be attached, detached, added or removed from the DOM without needing to deal with re-binding or double-binding events. This is because the event is attached to document.body
rather than $selector
directly, which means $selector
can be added, removed and added again and will never load the event bound to it.off()
before on()
, this script can live either within within the main body of the page, or within the body of an AJAX call, without having to worry about accidentally double-binding events.$(function() {...})
, this script can again be loaded by either the main body of the page, or within the body of an AJAX call. $(document).ready()
does not get fired for AJAX requests, while $(function() {...})
does.Here is an example:
<!DOCTYPE html>
<head>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<script type="text/javascript">
$(function() {
var $selector = $('textarea');
// Prevent double-binding
// (only a potential issue if script is loaded through AJAX)
$(document.body).off('keyup', $selector);
// Bind to keyup events on the $selector.
$(document.body).on('keyup', $selector, function(event) {
if(event.keyCode == 13) { // 13 = Enter Key
alert('enter key pressed.');
}
});
});
</script>
</head>
<body>
</body>
</html>
$('#textbox').on('keypress', function (e) {
if(e.which === 13){
//Disable textbox to prevent multiple submit
$(this).attr("disabled", "disabled");
//Do Stuff, submit, etc..
//Enable the textbox again if needed.
$(this).removeAttr("disabled");
}
});
Source: Stackoverflow.com