Nodejs Array Intersect intersect(b)

Method Source Code

/*!/*from  ww  w. j  ava  2 s  . co m*/
 * @name <%= name %> - jquery ??
 * @author <%= author %>
 * @date <%= date %>
 */
    
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;
}

Related

1. intersect(array)

   Array.prototype.intersect = function(array){
     return(this.filter(function(n){ return array.include(n); }));
   };
   

2. intersect(array)

   Array.prototype.intersect = function(array) {
     return this.filter((x) => array.indexOf(x) != -1);
   };
   

3. 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 '';
   

4. intersect(ary)

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

5. 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;
   };
   

6. 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;
   };
   

7. intersectintersect(otherArray)

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

8. intersection(arr)

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

9. 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;