How do i convert a JSON string to an array with objects with

Question

I want to convert the following string to an array

[{id: "1", type: "railroadCrossingSign", latitude: "55.647432", longtitude: "12.187673"}, {id: "2", type: "stationSign", latitude: "55.647444", longtitude: "12.187545"}]

Unfortunately an error occurs when I am JSON.parse(), probably because of the objects in the string...

How do i convert a JSON string with objects to an array with objects?

Suren Srapyan · Accepted Answer · 2017-06-18 16:45:59Z

5

JSON format requires that your keys also must be wrapped into "".

var string = '[{"id": "1", "type": "railroadCrossingSign", "latitude": "55.647432", "longtitude": "12.187673"}, {"id": "2", "type": "stationSign", "latitude": "55.647444", "longtitude": "12.187545"}]';

var arr = JSON.parse(string);

console.log(arr);

answered Jun 18, 2017 at 16:45

Suren Srapyan

68.9k14 gold badges128 silver badges119 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

K.Srapyan · Accepted Answer · 2017-06-18 21:36:53Z

1

In order to achieve what you want. Your JSON key value pair must in a string format too.
Say,

var obj = '[{
  "key" : "value"
}]';

Finally, when you use:

var obj = JSON.parse('{ "name":"John", "age":30, "city":"New York"}');
document.getElementById("demo").innerHTML = obj.name + ", " + obj.age;

You get the following results:

John, 30

edited Jun 18, 2017 at 21:36

K.Srapyan

403 bronze badges

answered Jun 18, 2017 at 16:55

haMzox

2,1091 gold badge15 silver badges25 bronze badges

Comments

Rohìt Jíndal · Accepted Answer · 2017-06-19 06:35:09Z

0

Some observations :

First make sure your JSON should be a valid JSON.
Object properties should be wrapped into quotes "".

If your JSON is already an JSON Object then no need to parse it again otherwise it will throw an error.

var jsonObj = [{
	"id": "1",
	"type": "railroadCrossingSign",
	"latitude": "55.647432",
	"longtitude": "12.187673"
}, {
	"id": "2",
	"type": "stationSign",
	"latitude": "55.647444",
	"longtitude": "12.187545"
}];

var newObj = JSON.parse(jsonObj);

console.log(newObj); // Error : Uncaught SyntaxError: Unexpected token o in JSON at position 1

answered Jun 19, 2017 at 6:35

Rohìt Jíndal

27.4k16 gold badges80 silver badges133 bronze badges

Collectives™ on Stack Overflow

How do i convert a JSON string to an array with objects with

3 Answers 3

Comments

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related