Nodejs Array Exchange exchange(i1,i2)

Method Source Code

Array.prototype.exchange = function(i1,i2) {
  var tmp = this[i1];
  this[i1] = this[i2];/*from  w ww  . j a v  a2 s . c  o  m*/
  this[i2] = tmp;
};

Related

1. exchange(i1,i2)

   Array.prototype.exchange = function(i1,i2) {
     var tmp = this[i1];
     this[i1] = this[i2];
     this[i2] = tmp;
   };
   var randomizeInPlace = function(A) {
     for (var i = 1, n = A.length; i < n; i++){
       A.exchange(i,getRandomIntInclusive(0,i));
     return A;
   };
   module.exports = randomizeInPlace;