Question

function f1(i1, i2) {
  log(i1);
  log(i2);
}

function f2(i1,i2){
  f1(arguments);
}

f2(100,200); 

In the above case in function f1 i1 gets [100, 200] while i2 is undefined.

What is the correct way to pass arguments to f1 from f2.

Answer 1

Function objects have an apply() method:

f1.apply(null, arguments)

The first parameter passed is the object that should be this in the called function, the second parameter is an array containing the parameter values for the called function.