Nodejs Array Complement complement(a, b)

Method Source Code

Array.complement = function(a, b){
     return Array.minus(Array.union(a, b),Array.intersect(a, b));
};

Related

1. complement()

   Array.prototype.each = function(fn){ 
   fn = fn || Function.K; 
   var a = []; 
   var args = Array.prototype.slice.call(arguments, 1); 
   for(var i = 0; i < this.length; i++){ 
       var res = fn.apply(this,[this[i],i].concat(args)); 
       if(res != null) a.push(res); 
   return a; 
   ...
   

2. complement(b)

   Array.prototype.complement = function(b) {
     return a.minus(a.union(b), a.intersect(b));
   };