Nodejs Array Reorder reorder(a)

Method Source Code

Array.prototype.reorder = function (a){
  var o = [], _ = this, i = 0;
  _.forEach(function(){
    o.push(_[a[i]] ? _[a[i]] : _[i]);//from   w ww  . j a v a  2s . c o  m
   i++;
  });
  return o;
  };

Related

1. reorder(a)

   var myArray = ['one', 'two', 'three','four', 'five'];
   Array.prototype.reorder = function (a){
     var o = [], _ = this, i = 0;
     _.forEach(function(){
       o.push(_[a[i]] ? _[a[i]] : _[i]);
     i++;
     });
     return o;
   };
   ...
   

2. reorder(mapping)

   Array.prototype.reorder = function (mapping) {
     return mapping.map(index => this[index])