Add two json object data in javascript

Question

I want to add two JSON objects which have structure like this (It has more data and I ignore them in here):

{ "total_count":100 , "types":20 , { "a" : 5 , "b" : 6 }}

{"total_count" : 1 , { "a" : 2 } }

I want to add these objects in node.js in order to get following object:

 { "total_count":101 , "types":20 , { "a" : 7 , "b" : 6 }}

I use mongodb which has $inc function which add current json to existing one in db and reduce load and store load. I'm interested to find a method which handle this action in nodejs.What should I do ( I dont want to do it manually preferly. instead i like to use existing functions)?

I suggest writing some recursive function that adds all the values together. You'll need `for(var i in object)` syntax. — Tomáš Zato, May 18 '14 at 11:45
Well this isn't a duplicate IMO, since the OP does not just want to merge two objects blindly together, but wants to do some transformation on the data itself, so a tailored function would make much more sense. The OP should add more details, eg whether that is a generic request or for that specific problem with that specific object-properties. — Zim84, May 18 '14 at 11:50

score 0 · Accepted Answer · answered May 18 '14 at 11:48

0

something like this? your json structure is not quite correct, so i added x.

object1 = {"total_count":100 , "types":20 , "x": { "a" : 5 , "b" : 6 }};

object2 = {"total_count" : 1 , "x":{ "a" : 2 } };

object1.total_count += object2.total_count;
object1.x.a += object2.x.a;

answered May 18 '14 at 11:48

Axil

3,606
10
62
136

This only partially answers the question: what if object 2 contains a value for b? You should make that more generic. – Zim84 May 18 '14 at 11:53
I presented only part of my object – JGC May 18 '14 at 11:54
Zim84, then just add b – Axil May 18 '14 at 12:08

Add two json object data in javascript

1 Answers1