Nodejs Array Compare compare(array)

Method Source Code

/**/*ww  w  .j a  va2s . c om*/
 * Recursively compare an array to another array.
 *
 * @param array array Array to compare with
 * @return boolean
 * @author http://stackoverflow.com/a/14853974/2113023
 */
Array.prototype.compare = function (array) {
   // if the other array is a falsy value, return
   if (!array)
      return false;

   // compare lengths - can save a lot of time
   if (this.length != array.length)
      return false;

   for (var i = 0; i < this.length; i++) {
      // Check if we have nested arrays
      if (this[i] instanceof Array && array[i] instanceof Array) {
         // recurse into the nested arrays
         if (!this[i].compare(array[i]))
            return false;
      }
      else if (this[i] != array[i]) {
         // Warning - two different object instances will never be equal: {x:20} != {x:20}
         return false;
      }
   }
   return true;
}

Related

1. compare(array)

   var _ = require('underscore');
   Array.prototype.compare = function(array) {
     if(this.length !== array.length) return false;
     for(var i = 0; i < array.length; i++) {
       if(!_.contains(this, array[i]))
         return false;
     };
     return true;
   };
   ...
   

2. compare(array)

   Array.prototype.compare = function (array) {
     if (!array)
     return false;
     if (this.length != array.length)
     return false;
     for (var i = 0, l=this.length; i < l; i++) {
       if (this[i] instanceof Array && array[i] instanceof Array) {
         if (!this[i].compare(array[i]))
         return false;
   ...
   

3. compare(array)

   Array.prototype.compare = function (array) {
     if (!array)
       return false;
     if (this.length != array.length)
       return false;
     for (var i = 0; i < this.length; i++) {
       if (this[i] instanceof Array && array[i] instanceof Array) {
         if (!this[i].compare(array[i]))
           return false;
   ...
   

4. compare(array)

   Array.prototype.compare = function (array) {
       if (!array)
           return false;
       if (this.length != array.length)
           return false;
       for (var i = 0; i < this.length; i++) {
           if (this[i] instanceof Array && array[i] instanceof Array) {
               if (!this[i].compare(array[i]))
                   return false;
   ...
   

5. compare(array)

   Array.prototype.compare = function (array) {
       if (!array)
           return false;
       if (this.length != array.length)
           return false;
       for (var i = 0, l=this.length; i < l; i++) {
           if (this[i] instanceof Array && array[i] instanceof Array) {
               if (!this[i].compare(array[i]))
                   return false;
   ...
   

6. compare(array)

   Array.prototype.compare = function (array) {
       if (!array)
           return false;
       if (this.length != array.length)
           return false;
       for (var i = 0; i < this.length; i++) {
           if (this[i] instanceof Array && array[i] instanceof Array) {
               if (!this[i].compare(array[i]))
                   return false;
   ...
   

7. compare(array)

   Array.prototype.compare = function (array) {
     if (!array)
       return false;
     if (this.length != array.length)
       return false;
     for (var i = 0; i < this.length; i++) {
       if (this[i] instanceof Array && array[i] instanceof Array) {
         if (!this[i].compare(array[i]))
           return false;
   ...
   

8. compare(other)

   Array.prototype.compare = function(other) {
     return this.join('') == other.join('');
   };
   

9. compare(secondArray, compareFunction)

   Array.prototype.compare = function(secondArray, compareFunction){
       if(this.length != secondArray.length){
           return false;
       for(var i = 0; i < this.length; i++){
           if(this[i] instanceof Array && secondArray instanceof Array){
               this[i].compare(secondArray[i]);
           }else if(this[i] instanceof Object && secondArray instanceof Object){
               if(!compareFunction(this[i], secondArray[i])){
   ...