Concatenate two JSON objects
JavascriptJsonJavascript Problem Overview
I have two JSON objects with the same structure and I want to concat them together using Javascript. Is there an easy way to do this?
Javascript Solutions
Solution 1 - Javascript
Based on your description in the comments, you'd simply do an array concat:
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}];
Solution 2 - Javascript
If you'd rather copy the 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);
Output of above code is{ value1: '1', value2: '4', value3: '3' }
Solution 3 - Javascript
The actual way is using JS Object.assign.
Object.assign(target, ...sources)
There is another object spread operator which is proposed for ES7 and can be used with Babel plugins.
Obj = {...sourceObj1, ...sourceObj2}
Solution 4 - Javascript
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(z)
// OUTPUTS:
{ a:1, b:2, c:4, d:5, e:6 }
From here.
Solution 5 - Javascript
You can use 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"}
Solution 6 - Javascript
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}
]
Solution 7 - Javascript
if using TypeScript, you can use the spread operator (...
)
var json = {...json1,...json2}
Solution 8 - Javascript
You can use Object.assign() method. The Object.assign() method is used to copy the values of all enumerable own properties from one or more source objects to a target object. It will return the target object.[1]
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 }
Solution 9 - Javascript
okay, you can do this in one line of code. you'll need json2.js for this (you probably already have.). the two json objects here are unparsed 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)));
Solution 10 - Javascript
Just try this, using 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
Solution 11 - Javascript
var baseArrayOfJsonObjects = [{},{}];
for (var i=0; i<arrayOfJsonObjectsFromAjax.length; i++) {
baseArrayOfJsonObjects.push(arrayOfJsonObjectsFromAjax[i]);
}
Solution 12 - Javascript
I use:
let jsonFile = {};
let schemaJson = {};
schemaJson["properties"] = {};
schemaJson["properties"]["key"] = "value";
jsonFile.concat(schemaJson);
Solution 13 - Javascript
The simplest way :
const json1 = { value1: '1', value2: '2' };
const json2 = { value2: '4', value3: '3' };
const combinedData = {
json1,
json2
};
console.log(combinedData)