The functions mentioned here are deprecated. The correct way to use JavaScript in Moodle is documented on [[JavaScript_guidelines]]. ...you can use the Firefox [[Web developer extension]]: ''Information > View JavaScript''.

...relevant. See [[Javascript_Modules]] for information on Javascript coding guidelines in Moodle. To view the previous text for this page check the history.

...or plain HTML must be designed and tested according to aria accessibility guidelines. ...nterface complies with "Level AAA Conformance to Web Content Accessibility Guidelines 2.0"

== What is JavaScript? == JavaScript is a scripting language widely used for client-side web development. It is

This article will act as a guide for users reporting errors related to JavaScript in Moodle. Generally, when debugging JavaScript errors in Moodle, we will ask for a number of things. This will likely incl

[[ Moodle User Interface Guidelines|Moodle User Interface Guidelines]] > '''Form''' Date selection: use javascript selector (how about time?)

<h4 class="card-title">Guidelines</h4> * [[Coding|Coding guidelines]]

[[ Moodle User Interface Guidelines|Moodle User Interface Guidelines]] > '''Link''' ...are still bookmarkable, can be opened to a new tab, and still work without javascript.

Moodle has officially chosen to use the YUI JavaScript library and it is encouraged to use that wherever possible. That being said You will also need to decide where to load the JavaScript. Moodle can load JavaScript into either the pages head, or at the bottom of the page (footer). Loading

This page forms part of the [[Security|Moodle security guidelines]]. ...splaying an advert from <nowiki>http://makemerich.com/</nowiki>. Then, and JavaScript code in the advert cannot access anything on your page.

...ing, Javascript loaders, Javascript Build Tools, Javascript Combo Loading, Javascript Accessible Widget Libraries, Templates for Renderers === Prechecking against Moodle coding guidelines from your command line ===

== JavaScript == JavaScript is included in different ways now and will need to be migrated, see the PHP

[[ Moodle User Interface Guidelines|Moodle User Interface Guidelines]] > '''Radio button''' ...itation directly, but you can use checkboxes and then script it either in Javascript or server side, in PHP.

[[ Moodle User Interface Guidelines|Moodle User Interface Guidelines]] > '''Wizard''' ...be undone or is in some other way potentially dangerous, consider adding a javascript warning dialog confirming the user wants to continue.

[[ Moodle User Interface Guidelines|Moodle User Interface Guidelines]] > '''Checkbox''' ...not support this limitation directly, but it has to be scripted either in Javascript or server side, in PHP.

This page is the top-level page describing Moodle's coding guidelines. It's the place to start if you want to know how to write code for Moodle. ...portant that all developers strictly follow our [[Security|Moodle security guidelines]].

[[ Moodle User Interface Guidelines|Moodle User Interface Guidelines]] > '''Big Select List''' * Some users may not have javascript support on, so it cannot be depended on

[[ Moodle User Interface Guidelines|Moodle User Interface Guidelines]] > '''User Data Always (Always) Safe''' ...n dialogs (such as preventing accidental leaving of an unsaved form with a javascript dialog) are frustrating to users. In some situations it may be smart to all

This page forms part of the [[Security|Moodle security guidelines]]. ...For example, by using a cross-site scripting vulnerability to include the JavaScript window.close() in a forum post.

# the forum code does not match the current coding guidelines. ...is one of the oldest components in Moodle and precedes many of the current guidelines and best practices that we currently follow. As a result, much of the code