Define global variable with webpack

Question

Is it possible to define a global variable with webpack to result something like this:

var myvar = {};

All of the examples I saw were using

Answer 1

Use DefinePlugin.

The DefinePlugin allows you to create global constants which can be configured at compile time.

new webpack.DefinePlugin(definitions)

Example:

plugins: [
  new webpack.DefinePlugin({
    PRODUCTION: JSON.stringify(true)
  })
  //...
]

Usage:

console.log(`Environment is in production: ${PRODUCTION}`);