Autoloading

mix.autoload({
   jquery: ['$', 'window.jQuery']
});

Webpack offers the necessary facilities to make a module available as a variable in every other module required by webpack.
If you're working with a particular plugin or library that depends upon a global variable, such as jQuery, mix.autoload() may prove useful to you.

Consider the following example:

mix.autoload({
   jquery: ['$', 'window.jQuery']
});

This snippet specifies that webpack should prepend var $ = require('jquery') to every location that it encounters either the global $ identifier, or window.jQuery.
Nifty!