Number.prototype.upto = function(t, cb) {
var i = this;
if(t < this) return +this;
while (i <= t) {
cb(i++);
}
return +this;
};
(1).upto(5, function(i){console.log(i);})
// Ruby = 5.times { |i| puts i }
// JS = (1).times(function(i){console.log(i);})
Number.prototype.times = function(cb) {
var i = -1;
while (++i < this) {
cb(i);
}
return +this;
}
(5).times(function(i){console.log(i);})
