How to get command line argument parameters in react?

How to get command line argument parameters in react?

I have a react code, built on Webpack. When I ran –

npm run build -- --configuration=dev

or

npm run build -- --configuration=qa

Based on that, I wanted to get the configuration parameters as DEV or QA – builds the web packs.

The problem here – How to get the npm params configuration, in the javascript?