Nodejs Array Intersect intersection(arr)

Method Source Code

Array.prototype.intersection = function(arr) {
    var intersection = new Array();
    for (var i = 0; i < arr.length; ++i)
        if (this.contains(arr[i]))
            intersection.push(arr[i]);//from w  ww . j a va 2  s.c o m
    return intersection;
}

Related

1. intersect(b)

   Array.prototype.intersect = function(b) {
     var array = new Array();
     var ua = this.uniquelize();
     var length = ua.length;
     for (var i = 0; i < length; i++) {
       if (b.inArray(ua[i])) {
         array.push(ua[i]);
     return array;
   };
   

2. intersect(b)

   Array.prototype.intersect = function(b) {
       var flip = {}, res = [];
       for (var i = 0; i < b.length; i++) flip[b[i]] = i;
       for (i = 0; i < this.length; i++)
           if (flip[this[i]] != undefined) res.push(this[i]);
       return res;
   

3. intersect(tab)

   Array.prototype.intersect = function(tab){
       var temp = [];
       for(var i = 0; i < this.length; i++){
           for(var k = 0; k < tab.length; k++){
               if(this[i] == tab[k]){
                   temp.push( this[i]);
                   break;
       return temp;
   };
   

4. intersectintersect(otherArray)

   Array.prototype.intersect = function intersect(otherArray) {
     return this.filter(function(item) {
       return otherArray.has(item);
     });
   };
   

5. intersection(arr)

   Array.prototype.intersection = function(arr){
     return this.filter(function(n){
       return arr.indexOf(n) != -1;
     });
   

6. intersection(t)

   Array.prototype.intersection = function(t)
       var s = this.toHash();
       var t = t.toHash();
       var intersection = [];
       s.keys().forEach(function(item)
           if (t.containsKey(item))
               intersection.push(item);
   ...