Is there any way to protect or encode JavaScript so that other can't see the code?

Answer 1

https://en.m.wikipedia.org/wiki/Obfuscation_(software)

Answer 2

change the chmod?

ohh you dont know that. okey no problem let me explain...

chmod is permissions... the permissions that you gonna give to users,you and the server...

you can use it on your host... try to search on google chmod. oh c mon dont do that its easy a four-year-old can do that too...