How to compare two JSON have the same properties without order

Question

I have tried to compare those two JSON objects    lt input type  hidden  id  remoteJSON  name  remoteJSON  value    allowExternalMembers    false    whoCanJoin    CAN REQUEST TO JOIN      gt  lt br   gt   lt input type  hidden  id  localJSON  name  localJSON  value    whoCanJoin    CAN REQUEST TO JOIN    allowExternalMembers    false      gt  lt br   gt    I got values with javascript and I tried to compare with   JSON stringify remoteJSON     JSON stringify localJSON  but this return false  it seems that the order of the properties is important   And I even tried deep compare with this solution and always got a false return   Is there a fast way to do the issue with jQuery  i e  libraries for comparing JSON

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In VueJs function you can use this as well    A working solution using recursion  Base credits Samadhan Sakhale       check objects obj1  obj2                try                   var flag   true                   if  Object keys obj1  length    Object keys obj2  length                        for  let key in obj1                             if typeof  obj1 key      typeof  obj2 key                                                          return false                                                     if  obj1 key     obj2 key                                 continue                                                     else if typeof  obj1 key      typeof  new Object                                                           if  this check objects obj1 key   obj2 key                                      return false                                                                                  else                               return false                                                                                    else                       return false                                             catch                    return false                             return flag

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This question reminds of how to determine equality for two JavaScript objects  So  I would choose this general function   Compares JS objects   function objectEquals x  y           if both are function     if  x instanceof Function            if  y instanceof Function                return x toString       y toString                      return false            if  x     null    x     undefined    y     null    y     undefined    return x     y        if  x     y    x valueOf       y valueOf      return true            if one of them is date  they must had equal valueOf     if  x instanceof Date    return false        if  y instanceof Date    return false            if they are not function or strictly equal  they both need to be Objects     if    x instanceof Object     return false        if    y instanceof Object     return false         var p   Object keys x       return Object keys y  every function  i    return p indexOf i      -1                   p every function  i    return objectEquals x i   y i         false

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We use the node-deep-equal project which implements the same deep-equal comparison as nodejs  A google serach for deep-equal on npm will show you many alternatives

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lodash will work  tested even for angular 5  http   jsfiddle net L5qrfx3x   var remoteJSON     allowExternalMembers    false    whoCanJoin        CAN REQUEST TO JOIN    var localJSON     whoCanJoin    CAN REQUEST TO JOIN       allowExternalMembers    false      if   isEqual remoteJSON  localJSON           TODO         it works  for installation in angular  follow this

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This code will verify the json independently of param object order   x000D   x000D  var isEqualsJson    obj1 obj2   gt       keys1   Object keys obj1       keys2   Object keys obj2          return true when the two json has same length and all the properties has same value key by key     return keys1 length     keys2 length  amp  amp  Object keys obj1  every key  gt obj1 key   obj2 key       var obj1    a 1 b 2 c 3   var obj2    a 1 b 2 c 3     console log  json is equals     isEqualsJson obj1 obj2    alert  json is equals     isEqualsJson obj1 obj2    x000D   x000D   x000D

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DeepCompare method to compare two json objects    x000D   x000D  deepCompare    arg1  arg2    gt    x000D    if  Object prototype toString call arg1      Object prototype toString call arg2    x000D      if  Object prototype toString call arg1        object Object      Object prototype toString call arg1        object Array      x000D        if  Object keys arg1  length     Object keys arg2  length    x000D          return false  x000D          x000D        return  Object keys arg1  every function key   x000D          return deepCompare arg1 key  arg2 key    x000D             x000D        x000D      return  arg1   arg2   x000D      x000D    return false  x000D    x000D   x000D  console log deepCompare  a 1   a  1        false x000D  console log deepCompare  a 1   a 1         true x000D   x000D   x000D

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I adapted and modified the code from this tutorial to write a function that does a deep comparison of two JS objects   const isEqual   function obj1  obj2        const obj1Keys   Object keys obj1       const obj2Keys   Object keys obj2        if obj1Keys length     obj2Keys length            return false             for  let objKey of obj1Keys            if  obj1 objKey      obj2 objKey                 if typeof obj1 objKey      object   amp  amp  typeof obj2 objKey      object                     if  isEqual obj1 objKey   obj2 objKey                          return false                                               else                   return false                                     return true       The function compares the respective values of the same keys for the two objects  Further  if the two values are objects  it uses recursion to execute deep comparison on them as well   Hope this helps

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Lodash isEqual   method is the best way to compare two JSON object   This will not consider the order of the keys in object and check for the equality of object  Example  const object1   name  ABC   address  India     const object2   address  India   name  ABC     JSON stringify object1    JSON stringify object2     false    isEqual object1  object2    true   Reference-https   lodash com docs  isEqual  If sequence is not going to change than JSON stringify   will be fast as compared to Lodash isEqual   method  Reference-https   www measurethat net Benchmarks Show 1854 0 lodash-isequal-test

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Lodash   isEqual allows you to do that     x000D   x000D  var x000D  remoteJSON     allowExternalMembers    false    whoCanJoin    CAN REQUEST TO JOIN    x000D      localJSON     whoCanJoin    CAN REQUEST TO JOIN    allowExternalMembers    false    x000D       x000D  console log    isEqual remoteJSON  localJSON     x000D   lt script src  https   cdn jsdelivr net npm lodash 4 17 10 lodash min js  gt  lt  script gt  x000D   x000D   x000D

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Easy way to compare two json string in javascript  var obj1     name   Sam   class   MCA    var obj2     class   MCA   name   Sam     var flag true   if Object keys obj1  length  Object keys obj2  length       for key in obj1             if obj1 key     obj2 key                 continue                    else               flag false              break                    else       flag false    console log  is object equal  flag

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Due to  zerkems comment   i should convert my strings to JSON object and then call the equal method   var x   eval       remoteJSON         var y   eval       localJSON          function jsonequals x  y           If both x and y are null or undefined and exactly the same     if   x     y             return true                If they are not strictly equal  they both need to be Objects     if       x instanceof Object          y instanceof Object               return false                They must have the exact same prototype chain  the closest we can do is        test the constructor      if   x constructor     y constructor             return false             for   var p in x                Inherited properties were tested using x constructor     y constructor         if   x hasOwnProperty  p                      Allows comparing x  p   and y  p   when set to undefined             if     y hasOwnProperty  p                       return false                                If they have the same strict value or identity then they are equal             if   x  p       y  p                       continue                                Numbers  Strings  Functions  Booleans must be strictly equal             if   typeof  x  p          object                      return false                                Objects and Arrays must be tested recursively             if    equals  x  p     y  p                         return false                                     for   p in y                allows x  p   to be set to undefined         if   y hasOwnProperty  p    amp  amp    x hasOwnProperty  p                   return false                      return true

[javascript] How to compare two JSON have the same properties without order?

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