How to copy only files without the folder structure

[jaichandra]

How can I flatten the folder structure and just copy the files? Similar to what copyfiles library does with -f option (https://www.npmjs.com/package/copyfiles).

I'm using cpx './dist/**/*.umd.js' './dest/assets', but this maintains the tree structure and creates all the subfolders in the destination directory. I need to copy just the files under the root of the destination folder.

[towry]

.... My needs is cpx ./dist/**/*.umd.js should keep dist folder.