What happens when I give more parameters than required in the function in Javascript?

Question

Assume -

function noname(a, b) {
//code
}

and I give -

noname(4,5,6,7);

What will happen then?

Answer 1

The additional parameters will simply get ignored.

They will however be available as part of the arguments pseudo-array, e.g. as arguments[2], arguments[3].

If you give fewer variables than are required then the missing ones will be undefined.