An AJAX command for implementing jQuery's data() method. This instructs the client to attach the name=value pair of data to the selector via

public DataCommand::render() Implements

The value of the data to be attached to elements matched by the selector. The data is not limited to strings; it can be any format.

The key of the data attached to elements matched by the selector. Type: string File

public DataCommand::__construct($selector, $name, $value)

A CSS selector string for elements to which data will be attached. If the command is a response to a request from an #ajax form element then