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Nuvola apps important
This script is for PERSONAL use only!
You are free to install this script for yourself, but it is not allowed to be used wiki-wide (e.g., in MediaWiki:Common.js or MediaWiki:Wikia.js), as it would violate FANDOM's Terms of Use.
(See the customization policy)

UsernameAvailability allows a user to quickly check the availability of an inputted username. The script inserts a "Find a username" item to the user's "My Tools" menu in Oasis and the user's toolbox in Monobook, which, when clicked, opens a modal with an input textbox.

Queried names are displayed in the modal log as links to the associated user pages, and if the account possesses a registration date, it is displayed in parentheses after the entry.

For security's sake, input is limited to 30 characters and special characters are forbidden.

Effects of this script can be seen in the toolbar of this page.


Add the following to your common.js or global.js files:

    type: "script",
    articles: [
importArticles — Best Practices for installing JavaScript on FANDOM

The importArticles statement is designed to combine multiple HTTP requests into a single data transfer, allowing multiple scripts to load and execute faster. If you've been installing several different scripts, your JavaScript file has probably accumulated unnecessary import statements. Click "Expand" to learn how to efficiently batch import scripts to speed up performance and make your code look cleaner. One other approach is by using the MediaWiki:ImportJS.

If your JavaScript file has several lines of code that say importScript, importScriptPage, or importArticles, you may be able to combine them! By batch importing a collection of scripts with a single import, your JavaScript code will load faster and look cleaner. Consider the example below. On the left is an example of what your JavaScript file might currently look like. On the right is how you could improve that code.

Multiple imports — messy and slow One import — clean and efficient
  type: 'script',
  article: 'u:dev:FloatingToc/code.js'
importScriptPage('page1.js', 'wikiname');
importScriptPage('page2.js', 'wikiname');
  type: 'script',
  articles: [

Note: In this example, pay close attention to the placement of commas and other punctuation. For people who aren't familiar with programming (and even those who are!), a common mistake when writing code is to accidentally delete, forget, or misplace critical symbols like commas or quotation marks. This can cause a syntax error that breaks the code. Carefully follow the convention shown here when using importArticles.

But there's much more to importArticles than just this! For more examples and advanced usage, see the help page at Help:Including additional JavaScript and CSS.


  • 18-12-16 - Initial revision
  • 19-12-16 - Preview modal crash fix implemented
  • 21-12-16 - General modal conflict issue fixed
  • 16-01-17 - Major rewrite (bug fixes and general optimization)
  • 01-02-17 - Optimization/cleanup by KockaAdmiralac
  • 11-10-17 - Monobook support, switch from jQuery to wikia.ui.factory modal, registration date