AjaxBatchDelete is based on a script written by Splarka on Wikipedia. This code has been rewritten to use jQuery by Grunny and works in both Wikia and Monobook skins. A newer version was made by Ozuzanna that features more functionality than the original.
The option to use the Batch Delete script will appear under your "My Tools" list.
In order to delete a batch of pages, just add the page names (not page URLs) in the form, each on a new line, and proceed to delete them with a set reason. The script will stop when it reaches an empty line, and it can be terminated early by blanking the list of pages remaining to be deleted.
Version 2 features the ability to protect the pages after deletion (this is optional), as well as loading from a modal on any page with the option to modify the rate at which it deletes/protects. If you'd like to modify the default rate of one delete every 1000 milliseconds (1 second), add the config
batchDeleteDelay before importing the script with your own number (in milliseconds) instead. For example, using:
batchDeleteDelay = 100;
will lower the delete rate to 0.1 second.
This version also enables the user to grab a whole category's contents and puts them into the text area ready for deletion. Note that the script will only load if the user has access to the delete right (content moderator, administrator, VSTF, staff or helper). Deleting Message Walls and threads is possible, however, restoring them properly isn't possible.