Call and apply examples

gistfile1.js

Array.prototype.max = function() {
  return Math.max.apply(Math, this);
};

[1,2,3].max(); // => 3

Array.prototype.all = function() {
   return [].every.apply(this, [].slice.call(arguments));
};

[1,2,3].all(function(x) { 
  return x > 0; 
}); // => true

Array.prototype.tail = function() {
  return [].slice.call(this, 1);
};

[1,2,3].tail(); // => [2, 3]