Nodejs Array Swap swap(a, b)

Method Source Code

Array.prototype.swap = function(a, b){
    this[a] = this.splice(b, 1, this[a])[0];
    return this;/*from  ww w.j  a v a 2  s  .c  o  m*/
};

Related

1. swap(a, b)

   Array.prototype.swap = function(a, b) {
     this[a] = [this[b], this[b] = this[a]][0];
   

2. swap(a, b)

   Array.prototype.swap = function(a, b)
     var t = this[a];
     this[a] = this[b];
     this[b] = t;
   };
   

3. swap(a, b)

   function qsort(array, begin, end)
     if(end-1>begin) {
       var pivot= 0;
       pivot=partition(array, begin, end, pivot);
       qsort(array, begin, pivot);
       qsort(array, pivot+1, end);
   Array.prototype.swap=function(a, b)
     var tmp=this[a];
     this[a]=this[b];
     this[b]=tmp;
   function partition(array, begin, end, pivot)
     var piv=array[pivot].minPoint.z;
     array.swap(pivot, end-1);
     var store=begin;
     var ix;
     for(ix=begin; ix<end-1; ++ix) {
       if(array[ix].minPoint.z<=piv) {
         array.swap(store, ix);
         ++store;
     array.swap(end-1, store);
     return store;
   function quick_sort(array)
     qsort(array, 0, array.length);
   

4. swap(a, b)

   Array.prototype.swap = function(a, b) {
       if (Object.prototype.toString.call(this) !== '[object Array]') {
           throw new TypeError("`this` must be Array, not " + typeof this);
       if (typeof a !== 'number') {
           throw new TypeError("argument[0] must be number, not " + typeof a);
       if (typeof b !== 'number') {
           throw new TypeError("argument[1] must be number, not " + typeof b);
   ...
   

5. swap(a, b)

   Array.prototype.swap=function(a, b)
       console.log("calling swap");
       var tmp=this[a];
       this[a]=this[b];
       this[b]=tmp;