Keep script code secret? Options

[JasonRay]

Hi. I'm a newbie in html script programming, so please excuse 'dumb' questions

My question: is it possible to write code which:
-executes on the user's machine, at best in the browser so that any machine running a web browser can execute the code, independent from OS and platform
and
-keep the code 'SECRET', i.e. so that no user or organization can (easily) view or decompile the code?

I mean, when I write a native C++ program it is in practice difficult/impossible to decompile it or understand the included algorithms from disassembly.
When I write a JavaScript plugin the code can, without greater efforts, be viewed by anyone, right?

So is there a way to run a program in the user's web browser while preventing the used algorithms to be viewed and copied by anyone else?

Thanks.

[Christian J]

When I write a JavaScript plugin the code can, without greater efforts, be viewed by anyone, right?

Yes.

So is there a way to run a program in the user's web browser while preventing the used algorithms to be viewed and copied by anyone else?

In general, no. For some applications (such as calculations) you might run as much as possible of the code at the server, and only let javascript/Ajax see the results.

Or you might let Ajax fetch only small parts of the javascript at the time from the server, but this just makes it harder (not impossible) for the user to view it all.

But see also https://en.wikipedia.org/wiki/Encrypted_Media_Extensions