Edit in JSFiddle

function awesome(a,b,c) {
    console.log("called awesome with three params");
     console.log(a); 
    console.log(b);
    console.log(c);
}

function awesome(b,c) {
     console.log("called awesome with two params");
     console.log(b); 
    console.log(c);
}

awesome(1,2,3);
awesome(2,3);