JavaScript Controls

How can I sniff the Print Screen key so that when it is pressed, a number of events happen on a web… Read more Sniffing The "print Screen" Key To Attach Its' Contents On A Composed Mail Automatically

I faced a very interesting issue. I'm trying to set the focus on a input field using Javascript… Read more Not Setting Focus To Text Field In Firefox

Currently what I do is checking if element exist in page, but my code has a lot if conditions becau… Read more Best Approach To Handle "cannot Read Property 'addeventlistener' Of Null" Errors

I'm working on key handling in Javascript. I have done some research and I'd like to know w… Read more Javascript Key Handling And Browser Compatibility

Text and sample code adapted from http://www.webdeveloper.com/forum/archive/index.php/t-65078.html,… Read more Div Onmouseout Not As Expected

There are events called 'onkeydown' and 'onkeyup' in Javascript. Can anyone please … Read more What Is The Equivalent For Onkeydown And Onkeyup (javascript Events) In Python?

I'm able to get the jquery response on the triggering but the fabric canvas is not acting on th… Read more How Do I Trigger Mouse Events In Fabric.js To Simulate Mouse Actions?

I am trying to debug an event handling bug in a complicated web application, but I've reduced t… Read more Why Is Dragging In Raphaël Broken By Stopping Propagation Of Mousemove In An Enclosing Element In The Bubble Phase?

Like in the image, the Facebook comment box has no submit button, when you write something and pres… Read more Post Comments On Facebook Page Via Console

Perhaps this is a misconception of mine, but I thought that when you create a custom event, and lat… Read more Dispatchevent To All Listeners

I'm trying to remove event listeners from elements after they've been clicked on and althou… Read more Removing Event Listeners On Automatically Created Multiple Elements

I'm trying to write an extension that monitors every time someone types hits enter when using t… Read more Firefox Addon To Do Something Everytime A User Hits Enter In The Address Bar

I am developing a iPhone Hybrid App. In that I have inserted a link using Javascript and defined th… Read more Onclick Event Is Occuring Two Times In Iphone Hybrid App

I'm trying to detect if an html element I gave an id is visible or not without using jquery. Th… Read more Detect If An Element Is Visible (without Using Jquery)

Read more Object Expected Error Message In Javascript

To clarify my question, here are two examples in Javascript-esque pseudo-code. Here are the same ex… Read more In Terms Of Efficiency And Elegance, Is It Better To Add And Remove Event Listeners Or Use Global/high-level Variables To Control Emitter Event Logic?

Is there a way to detect DOM change events? whether it be text replacement, moving a node, removin… Read more Detecting Dom Change Events

I have my program in PHP and Javacript for Firefox I want to emulate on Javascript a hotkey (ALT +… Read more Javascript Simulate Hotkey Sending

I'm working on a simple login form, with two fields: Solution 1: Please be advised that — even… Read more Override Html5 Validation

I do understand that it's not possible to replace the beforeunload dialog with a custom one, an… Read more How To Show A Modal Dialog Before Beforeunload Shows Its Own?