Hi,

The assets folder js/css files are compiled from the src folder using gulp or webpack tools.

You can modify the js files in the src folder src/js.

Then recompile your assets folder with Gulp or Webpack.

Please note that the build tools are required only in the development environment just to compile the assets when the source folder files are modified. In the hosting/server deployment, you will only need the compile assets, no need to install the build tools dependencies there.

Regards,
Sean

Concatenating .js files can be a useful practice when managing larger JavaScript projects because it helps reduce the number of HTTP requests and can improve the performance of basket random. It also simplifies the editing process by having all the code in a single file.