How to hide my source code in web browser after deployed the platform browser?

Ionic Framework ionic-v3
1

how to hide my source code in browser, the www file folder

2

You can’t.
You can’t hide it when deploying to the devices either.

3

See: https://jscrambler.com/

4

I don’t think you can really stop determined ones with any front end stuff due to the front-end app nature.
The best effort is to make it harder to read