You'll have to use a setTimeout (like you are) but also store the reference so you can keep resetting the limit. Something like:
//_x000D_
// $('#element').donetyping(callback[, timeout=1000])_x000D_
// Fires callback when a user has finished typing. This is determined by the time elapsed_x000D_
// since the last keystroke and timeout parameter or the blur event--whichever comes first._x000D_
// @callback: function to be called when even triggers_x000D_
// @timeout: (default=1000) timeout, in ms, to to wait before triggering event if not_x000D_
// caused by blur._x000D_
// Requires jQuery 1.7+_x000D_
//_x000D_
;(function($){_x000D_
$.fn.extend({_x000D_
donetyping: function(callback,timeout){_x000D_
timeout = timeout || 1e3; // 1 second default timeout_x000D_
var timeoutReference,_x000D_
doneTyping = function(el){_x000D_
if (!timeoutReference) return;_x000D_
timeoutReference = null;_x000D_
callback.call(el);_x000D_
};_x000D_
return this.each(function(i,el){_x000D_
var $el = $(el);_x000D_
// Chrome Fix (Use keyup over keypress to detect backspace)_x000D_
// thank you @palerdot_x000D_
$el.is(':input') && $el.on('keyup keypress paste',function(e){_x000D_
// This catches the backspace button in chrome, but also prevents_x000D_
// the event from triggering too preemptively. Without this line,_x000D_
// using tab/shift+tab will make the focused element fire the callback._x000D_
if (e.type=='keyup' && e.keyCode!=8) return;_x000D_
_x000D_
// Check if timeout has been set. If it has, "reset" the clock and_x000D_
// start over again._x000D_
if (timeoutReference) clearTimeout(timeoutReference);_x000D_
timeoutReference = setTimeout(function(){_x000D_
// if we made it here, our timeout has elapsed. Fire the_x000D_
// callback_x000D_
doneTyping(el);_x000D_
}, timeout);_x000D_
}).on('blur',function(){_x000D_
// If we can, fire the event since we're leaving the field_x000D_
doneTyping(el);_x000D_
});_x000D_
});_x000D_
}_x000D_
});_x000D_
})(jQuery);_x000D_
_x000D_
$('#example').donetyping(function(){_x000D_
$('#example-output').text('Event last fired @ ' + (new Date().toUTCString()));_x000D_
});<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>_x000D_
_x000D_
<input type="text" id="example" />_x000D_
<p id="example-output">Nothing yet</p>That will execute when:
blur event)(Whichever comes first)
~ Answered on 2012-12-26 14:52:31