4 ways to declare functions in JavaScript, which best one to use?

Answer 1

JavaScript code that forms the function body.

The list of parameters.

The variables accessible from the lexical scope.

The returned value.

Answer 2

The statement function is best to use in javascript.
The most advantage of this type of function is that you can call a function statement before it is declared.

Ex:- you can do this like,

1) Function add(n1,n2){
//code
}

add(2,3);

or

2) add(2,3);

Function add(n1,n2){
//code
}

Both are accepted.

Hope you get it.

Answer 3

I use the traditional way

function name(attr) {
// code
}