Const
When asyncLoad uses require(), it actually operates synchronously and this is true
A function for loading external files (can be changed for node/browser use)
The browser context (window and document values)
Creates a MathDocument using a registered handler that knows how to handl it
The functions for handling retries if a file must be loaded dynamically
The list of registers document handlers
The MathJax version number
The main MathJax global object