gistfile1.js

// consider this simple function
var calc_total = function(a,b,c) {
    return (this + a + b + c);
}

calc_total.call(1,2,3,4,5); // result is 10. 1 is treated as this, and 2,3,4 as a,b,c. 5 is ignored.


var calc_total2 = function(a,b,c) {
    return (this + a + b + c);
}

calc_total2.apply(1,[2,3,4,5]);