I have seen a main() function in some JavaScript files I have come across. Is it the same main function as you use in other languages such as C#, C++?? If you put a main function in your JS file, is that where the code starts executing? Or is it just another name used for a function?
I have searched the web but didn't find anything useful regarding this matter.
No, main is not the same in JavaScript as in C languages. It's just another function, but the original programmer is probably using the name as a convention to indicate where the code should start running.
"Main" function has nothing different then any other function (Its just a name). It will run when called and not automatically.
It is just a name given to a function, there isn't such a thing as C "main" in javascript.
来源：https://stackoverflow.com/questions/8629859/main-function-in-javascript