Nodejs Array Search searchIndex(n)

Method Source Code

"use strict";//ww  w  .  j a va  2 s. com
Array.prototype.searchIndex = function(n){
   /* body... */
   var result = [],
         i,
         l= this.length;
         // console.log(l);
   for( i= 0; i< l; i++){
      if(this[i] == n){
         result.push(i);
      }
   }
   if(result.length == 0){
      result.push(-1);
   }
   return result;
};


 var arr = [1,2,5,5,5,5,5,6,9];
console.log(arr.searchIndex(5));//[2,3,4,5,6]
console.log(arr.searchIndex(0));

Related

1. search(search_func)

   Array.prototype.search = function(search_func){
       for (var i= 0; i<this.length; i++){
           if (search_func(this[i]) == 0)
               return this[i]
       return null;
   

2. search(v)

   Array.prototype.search = function(v){
     for (i=0;i<this.length;i++) {
       if (this[i]===v) return i;
   

3. search(value)

   Array.prototype.search = function(value){
     var startIndex  = 0,
     stopIndex = this.length - 1,
     middle = Math.floor((stopIndex + startIndex)/2);
     var count = 0;
     while(this[middle] != value && startIndex < stopIndex){
       if (value < this[middle]){
         stopIndex = middle - 1;
       }else if (value > this[middle]){
   ...
   

4. search(value)

   Array.prototype.search = function(value){
     var startIndex  = 0,
     stopIndex = this.length - 1,
     middle = Math.floor((stopIndex + startIndex)/2);
     var count = 0;
     while(this[middle] != value && startIndex < stopIndex){
       count+=1;
       if (value < this[middle]){
         stopIndex = middle - 1;
   ...
   

5. searchById(id)

   Array.prototype.searchById = function(id){
     for(var i=0; i<this.length; i++){
       if(this[i].id === id){
         return this[i];
   };
   

6. searchObject(filterParams)

   'use strict';
   Array.prototype.searchObject = function (filterParams) {
       return this.filter(function (v) {
           return recursiveMatchFunc(v, filterParams);
       });
   };
   Array.prototype.randomSelect = function () {
       return this[Math.floor(Math.random() * this.length)];
   };
   ...