Nodejs Array Different diff( a )

Method Source Code

/*  //from  w w  w  .j av a 2 s. c o  m
 *  Array prototype additions
 */

Array.prototype.diff = function( a ) {
    return this.filter( function( i ) { return !( a.indexOf( i ) > -1 ); } );
};

Related

1. diff

   Array.prototype.diff =
     function(otherArray) [ i for each( i in this ) if( !otherArray.has( i ) ) ];
   

2. diff(B)

   Array.prototype.diff = function (B) {
       return this.filter(function (a) { return B.indexOf(a) < 0; });
   };
   

3. diff(a)

   Array.prototype.diff = function(a) {
       return this.filter(function(i) {return a.indexOf(i) < 0;});
   };
   

4. diff(a)

   Array.prototype.diff = function (a) {
       return this.filter(function (e) { return a.indexOf(e) === -1 });
   };
   

5. diff(a)

   module.exports = {
       findMissing :function (a,b){
               if(a.length === b.length) return 0;
               if(a.length < b.length) return b.diff(a)[0];
               return a.diff(b)[0];
   };
   Array.prototype.diff = function(a) {
       return this.filter(function(i) {return a.indexOf(i) < 0;});
   ...