Nodejs Array Intersect intersectintersect(otherArray)

Method Source Code

/**// ww w  . j  av  a2s  .  co  m
 * Compare this array with another one and return an array with all the items
 * that are in both arrays.
 * 
 * @param {Array} otherArray The array to compare to
 * @return {Array} An array with all items in this array and otherArray
 */
Array.prototype.intersect = function intersect(otherArray) {
   return this.filter(function(item) {
      return otherArray.has(item);
   });
};

Related

1. intersect(array)

   Array.prototype.intersect = function(array){
     if(this.length>array.length) return '';
     var equals = true,
         concat = '';
     for(var i = 0; i < this.length-1; i++){
       if(this[i+1] != array[i]){
         equals = false;
         break;
     if(equals){
       concat = this.reduce((acc,k,i) => acc + (i<this.length?k:''), '');
       concat = array.reduce((acc,k,i) => acc + (i>=this.length-1?k:''), concat);
       return concat;
     return '';
   

2. intersect(ary)

   Array.prototype.intersect = function (ary) {
       return this.union(ary).filter(x => this.contains(x) && ary.contains(x));
   };
   

3. 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;
   };
   

4. 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;
   

5. 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;
   };
   

6. intersection(arr)

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

7. intersection(arr)

   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]);
       return intersection;
   

8. 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);
   ...