#javascript-events

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How to: Listening for variable changes in JavaScript or jQuery #programming #solution #development

How to: Listening for variable changes in JavaScript or jQuery #programming #solution #development

Listening for variable changes in JavaScript or jQuery

Is it possible to have an event that fires when the value of a certain variable changes? Thanks!

Answer [by jldupont]: Listening for variable changes in JavaScript or jQuery

Not directly: you need a pair getter/setter with an “addListener/removeListener” interface of some sort… or an NPAPI plugin (but that’s another story altogether).

Answer…

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[goodanswerbiz]

Answer: How to trigger event in JavaScript? #dev #solution #it

Answer: How to trigger event in JavaScript? #dev #solution #it

How to trigger event in JavaScript?

I have attached an event to a text box using addEventListener. It works fine. My problem arose when I wanted to trigger the event programmatically from another function.

How can I do it?

Answer [by Alsciende]: How to trigger event in JavaScript?

You can use fireEvent on IE, and w3c’s dispatchEventon most other browsers. To create the event you want to fire,…

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[goodanswerbiz]

Fixed: Enter key press event in JavaScript #computers #programming #answer

Fixed: Enter key press event in JavaScript #computers #programming #answer

Enter key press event in JavaScript

I have a form with two text boxes, one select drop down and one radio button. When the enter key is pressed, I want to call a javascript function (User defined), but when I press it, the form is submitted.

How do I prevent the form from being submitted when the enter key is pressed?

Answer [by Josh]: Enter key press event in JavaScript

if(characterCode == 13)…

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[goodanswerbiz]

Fixed window.onload vs document.onload #dev #it #asnwer

Fixed window.onload vs document.onload #dev #it #asnwer

window.onload vs document.onload

Which is more widely supported: window.onload or document.onload?

Answer: window.onload vs document.onload window.onload

When do they fire?

window.onload

By default, it is fired when the entire page loads, including its content (images, css, scripts, etc.)

In some browsers it now takes over the role of document.onload and fires when the DOM is ready as well.

docu…

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[goodanswerbiz]

Fixed How to detect escape key press with JavaScript? #dev #it #asnwer

Fixed How to detect escape key press with JavaScript? #dev #it #asnwer

How to detect escape key press with JavaScript?

Possible Duplicate: Which keycode for escape key with jQuery

How to detect escape key press in IE, Firefox and Chrome? Below code works in IE and alerts 27, but in firefox it alerts 0

$('body').keypress(function(e){ alert(e.which); if(e.which == 27){ // Close my modal window } });

Answer: How to detect escape key press with JavaScript?

check for

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[goodanswerbiz]

Fixed jQuery lose focus event #dev #it #asnwer

Fixed jQuery lose focus event #dev #it #asnwer

jQuery lose focus event

I’m trying to show up a container if a input field gets the focus and – that’s the actual problem – hide the container if focus is lost. Is there an opposite event for jQuery’s focus?

Some example code:

some cool options

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[sevennet-blog]

How to: jQuery - how to wait for the 'end' of 'resize' event and only then perform an action?

How to: jQuery – how to wait for the 'end' of 'resize' event and only then perform an action?

jQuery – how to wait for the ‘end’ of ‘resize’ event and only then perform an action?

So I currently use something like:

$(window).resize(function(){resizedw();});

But this gets called many times while resizing process goes on. Is it possible to catch an event when it ends?

Answer: jQuery – how to wait for the ‘end’ of ‘resize’ event and only then perform an action?

Internet Exploerer provides…

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[goodanswerbiz]

Fixed Javascript that executes after page load #dev #it #asnwer

Fixed Javascript that executes after page load #dev #it #asnwer

Javascript that executes after page load

I’m executing an external script, using a <script> inside <head>.

Now since the script executes before the page has loaded, I can’t access the <body>, among other things. I’d like to execute some JavaScript after the document has been “loaded” (HTML fully downloaded and in-RAM). Are there any events that I can hook onto when my script executes, that will…

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