Merge two JSON objects

Question

I have two JSON objects with the same structure and I want to combine them together using Javascript. Is there an easy way to do this?

Answer 1

Based on your description in the comments, you simply execute the concat array:

var jsonArray1 = [{'name': "doug", 'id':5}, {'name': "dofug", 'id':23}]; var jsonArray2 = [{'name': "goud", 'id':1}, {'name': "doaaug", 'id':52}]; jsonArray1 = jsonArray1.concat(jsonArray2); // jsonArray1 = [{'name': "doug", 'id':5}, {'name': "dofug", 'id':23}, //{'name': "goud", 'id':1}, {'name': "doaaug", 'id':52}]; 

Answer 2

If you want to copy properties:

 var json1 = { value1: '1', value2: '2' }; var json2 = { value2: '4', value3: '3' }; function jsonConcat(o1, o2) { for (var key in o2) { o1[key] = o2[key]; } return o1; } var output = {}; output = jsonConcat(output, json1); output = jsonConcat(output, json2); 

The output of the above code: { value1: '1', value2: '4', value3: '3' }

Answer 3

You can use the jquery extend method.

Example:

 o1 = {"foo":"bar", "data":{"id":"1"}}; o2 = {"x":"y"}; sum = $.extend(o1, o2); 

Result:

 sum = {"foo":"bar", "data":{"id":"1"}, "x":"y"} 

Answer 4

The actual way is to use JS Object.assign.

 Object.assign(target, ...sources) 

MDN Link

There is another object distribution operator that is offered for ES7 and can be used with Babel plugins.

  Obj = {...sourceObj1, ...sourceObj2} 

Answer 5

One solution is to use a list / array:

 var first_json = {"name":"joe", "age":27}; var second_json = {"name":"james", "age":32}; var jsons = new Array(); jsons.push(first_json); jsons.push(second_json); 

Result

 jsons = [ {"name":"joe", "age":27}, {"name":"james", "age":32} ] 

Answer 6

You can use the Object.assign () method . The Object.assign () method is used to copy the values ​​of all enumerated own properties from one or more source objects to the target object. It will return the target. [one]

 var o1 = { a: 1 }, o2 = { b: 2 }, o3 = { c: 3 }; var obj = Object.assign(o1, o2, o3); console.log(obj); // { a: 1, b: 2, c: 3 } 

Answer 7

I use

let x = {a: 1, b: 2, c: 3}

let y = {c: 4, d: 5, e: 6}

let z = Object.assign (x, y)

console.log (g)

// OUTPUTS:

{a: 1, b: 2, c: 4, d: 5, e: 6}

https://www.quora.com/How-can-I-add-two-JSON-objects-into-one-object-JavaScript

Answer 8

In order, you can do this in one line of code. you will need json2.js to do this (maybe you already have one). the two json objects here are inseparable strings.

 json1 = '[{"foo":"bar"},{"bar":"foo"},{"name":"craig"}]'; json2 = '[{"foo":"baz"},{"bar":"fob"},{"name":"george"}]'; concattedjson = JSON.stringify(JSON.parse(json1).concat(JSON.parse(json2))); 

Answer 9

Just try this using the underscore

 var json1 = [{ value1: '1', value2: '2' },{ value1: '3', value2: '4' }]; var json2 = [{ value3: 'a', value4: 'b' },{ value3: 'c', value4: 'd' }]; var resultArray = []; json1.forEach(function(obj, index){ resultArray.push(_.extend(obj, json2[index])); }); console.log("Result Array", resultArray); 

Result

Answer 10

 var baseArrayOfJsonObjects = [{},{}]; for (var i=0; i<arrayOfJsonObjectsFromAjax.length; i++) { baseArrayOfJsonObjects.push(arrayOfJsonObjectsFromAjax[i]); } 

Answer 11

Javascript only =)

 var objA = { 'a': 1, 'b': 2} var objB = { 'x': 3, 'y': 5} objA.nameNewObj = objB 

Answer 12

I use:

 let jsonFile = {}; let schemaJson = {}; schemaJson["properties"] = {}; schemaJson["properties"]["key"] = "value"; jsonFile.concat(schemaJson); 

Answer 13

if you use TypeScript, you can use the distribution operator ( ... )

 var json = {...json1,...json2}