Nodejs Array Compare compare(array)

Method Source Code

Array.prototype.compare = function (array) {
  // if the other array is a falsy value, return
  if (!array)// w  w  w  .j  a v a2 s.co m
    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(arr)

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

2. 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;
   };
   ...
   

3. 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;
   ...
   

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;
   ...