How to pass an array to a function?

Question

JavaScript

I started learning node.js and then a question came up, because I'm not very good with regular js either. How can I pass an array like this to a function:

var mass = {
  a: "",
  b: ""
};

function func(){
mass = {
  a: "a",
  b: "b"
};
}

Should be something like
func(mass.a, mass.b);Or how is it done?

Answer 1

function func(arr){
 //
}

func(['1', '2']);