Nodejs Number Iterate downto(to)

Method Source Code

Number.prototype.downto = function (to) {
  var a = [];/*www . j  a  v a 2  s . co m*/
  var from = this.valueOf();
  var i = from + 1;
  while (i-- > to) {
    a.push(i);
  }
  return a;
};

Related

1. upto(from)

   Number.prototype.upto = function (from) {
     var a = [];
     var to = this.valueOf();
     var i = to - 1;
     while (i++ < from) {
       a.push(i);
     return a;
   };
   ...
   

2. upto(t, cb)

   Number.prototype.upto = function (t, cb) {
     var i = this;
     if(t < this) {
       return +this;
     while (i <= t) {
       cb(i++);
     return +this;
   ...
   

3. upto(t, cb)

   Number.prototype.upto = function(t, cb) {
     var i = this;
     if(t < this) return +this;
     while (i <= t) { cb(i++); }
     return +this;
   };
   

4. downto(t, cb)

   Number.prototype.downto = function (t, cb) {
     var i = this;
     if(t > this) {
       return +this;
     while (i >= t) {
       cb(i--);
     return +this;
   ...
   

5. downto(t, cb)

   Number.prototype.downto = function(t, cb) {
     var i = this;
     if(t > this) return +this;
     while (i >= t) { cb(i--); }
     return +this;
   };