Nodejs Array Next next()

Method Source Code

Array.prototype.next = function() {
  var i = this.__i || 0;
  if(i >= this.length - 1) {
    return {//from  ww  w .jav a  2 s.  co  m
      done: true
    };
  }
  else {
    i++;
    return {
      done: i >= this.length - 1,
      value: this[i - 1]
    }
  }
};

Related

1. next()

   Array.prototype.next = function() {
       return this[++this.current];
   };
   Array.prototype.previous = function() {
       return this[--this.current];
   };
   Array.prototype.current = 0;
   

2. next()

   Array.prototype.next = function() {
     if (!((this.index + 1) in this)) return false;
       return this[++this.index];
   };
   

3. next()

   Array.prototype.next = function() {
     var current = this.shift();
     this.push(current);
     return current;
   

4. next(index)

   Array.prototype.next = function(index) {
       if (index === this.length - 1) {
           return this[0];
       } else {
           return this[index + 1];