How to apply filter on files only?

[wildan-m]

Hi,

I have a folder containing js libraries.

source\libs\autoComplete.js\js\autoComplete.min.js
source\libs\autoComplete.js\css\autoComplete.css

How could I filter the files without filtering the folder name?

I've tried this:

ncp' 'source/libs/' 'build/source/libs' --filter="^(.(?!.*\.js$|.*\.json))*$"

But it also filters the folder. The folder source\libs\autoComplete.js\ does not exist in the destination.

Thanks