No not necessarily, and if it is, it's bad practice. Client-side js will always be readable, even if you obfuscate it, you can't trust it to never being decomp

No not necessarily, and if it is, it's bad practice. Client-side js will always be readable, even if you obfuscate it, you can't trust it to never being decompiled. But server-side js never has to reach the client, it can be used to dynamically generate basically anything.