Nodejs Array Search search(v)

Method Source Code

/* Extended JavaScript Array library
 * Copyright 2009 Jaakko-Heikki Heusala <jheusala@iki.fi>
 * $Id: $//from   w  w  w .  ja v a 2  s. c  o m
 */

/** Search array for a value
 * \return Array index or undefined
 */
Array.prototype.search = function(v){
   for (i=0;i<this.length;i++) {
      if (this[i]===v) return i;
   }
}

Related

1. search(key)

   Array.prototype.search = function(key) {
     'use strict';
     var max = this.length - 1;
     var min = 0;
     var count = 0;
     while (min <= max) {
       var mid = Math.floor((min + max) / 2);
       if (this[mid] === key) {
         return {
   ...
   

2. search(key, value)

   Array.prototype.search = function (key, value) {
       return this.reduce(function (result, el) {
           if (result) return result;
           if (key) {
               if (typeof key === "function") {
                   if (key(el) === value) {
                       return el;
               } else {
   ...
   

3. search(key, value)

   Array.prototype.search = function (key, value) {
       if (arguments.length == 1) {
           return this.filter(function (e) {
               return e == value;
           });
       if (arguments.length == 2) {
           var k = arguments[0];
           var value = arguments[1];
   ...
   

4. search(n)

   Array.prototype.search = function(n) {
     var start = 0;
     var end = this.length - 1;
     var result = {count: 0, index: -1, length: this.length};
     while (start <= end) {
       mid = (start + end) / 2 >> 0;
       if (this[start] === n) {
         result.index = start;
         return result;
   ...
   

5. 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;
   

6. 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]){
   ...
   

7. 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;
   ...
   

8. searchById(id)

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

9. searchIndex(n)

   "use strict";
   Array.prototype.searchIndex = function(n){
     var result = [],
         i,
         l= this.length;
     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));
   console.log(arr.searchIndex(0));