Jquery custom event handler , triggers when user stop typing.

jquery.donetyping.js

/*
 * $('#element').donetyping(callback[, timeout=1000])
 *
 * source: http://stackoverflow.com/a/14042239/3705299
 *
 * Fires callback when a user has finished typing. This is determined by the time elapsed
 * @callback: function to be called when even triggers
 * @timeout:  (default=1000) timeout, in ms, to to wait before triggering event if not caused by blur.
 * Requires jQuery 1.7+
 * Tested with jQuery 1.11.3
 */

;(function($){

    $.fn.extend({

        donetyping: function(callback,timeout){

            timeout = timeout || 1e3; // 1 second default timeout

            var timeoutReference,

                doneTyping = function(el){

                    if (!timeoutReference) return;
                    timeoutReference = null;
                    callback.call(el);
                };
            return this.each(function(i,el){
                var $el = $(el);
                // Chrome Fix (Use keyup over keypress to detect backspace)
                // thank you @palerdot
                $el.is(':input') && $el.on('keyup keypress paste',function(e){
                    // This catches the backspace button in chrome, but also prevents
                    // the event from triggering too preemptively. Without this line,
                    // using tab/shift+tab will make the focused element fire the callback.
                    if (e.type=='keyup' && e.keyCode!=8) return;
                    
                    // Check if timeout has been set. If it has, "reset" the clock and
                    // start over again.
                    if (timeoutReference) clearTimeout(timeoutReference);
                    timeoutReference = setTimeout(function(){
                        // if we made it here, our timeout has elapsed. Fire the
                        // callback
                        doneTyping(el);
                    }, timeout);
                }).on('blur',function(){
                    // If we can, fire the event since we're leaving the field
                    doneTyping(el);
                });
            });
        }
    });
})(jQuery);