Types of bundlers:

• react – a bundler for React.js app
• node – a bundler for Node.js app

Example of using react bundler:

The start script launches the bundler executable file – dwfeBundler.
The start script passes the bundler executable file the name of the settings based on which it needs to work. In this example, these are settings named "opt".
After launch, the bundler searches for its settings according to the following pattern: package.json file ➔ object with settings in the predefined field dwfeBundlerOptions ➔ settings by the given name.