Javascript: How can I turn a String into an array of objects

Question

I have a string formatted as below:

{"title":"XYZ","id":"123"} {"title":"NPS","id":"124"}{"title":"LMW","id":"125"}

I am trying to convert this into an array by storing it in a variable and splitting it as such:

let prodInfo = "{"title":"XYZ","id":"123"} {"title":"NPS","id":"124"}{"title":"LMW","id":"125"}";

I then split this variable as in:

   let infoArry =  prodInfo.split("}");
   console.log(infoArry);

The results I get after this is:

The issue is when I loop through this array to access titles separately, I get it as undefined.

Any recommendations would be appreciated

Do you have control over the input string? If you make a couple of amendments it could be made in to valid JSON which can be parsed in a single call to JSON.parse() — Rory McCrossan
– Rory McCrossan, Commented Sep 8, 2020 at 19:13
Since you have the ability to change it, change it to: [{"title":"XYZ","id":"123"},{"title":"NPS","id":"124"},{"title":"LMW","id":"125"}] then you can just use JSON.parse(str) — imvain2
– imvain2, Commented Sep 8, 2020 at 19:19

Rory McCrossan · Accepted Answer · 2020-09-08 19:23:09Z

3

Given that you state in the comments under the question that you are able to change the input string format, I would strongly suggest you convert it to valid JSON. Then you can simply call JSON.parse() and work with the resulting array as needed. Try this:

var input = '[{"title":"XYZ","id":"123"},{"title":"NPS","id":"124"},{"title":"LMW","id":"125"}]';
var output = JSON.parse(input);

output.forEach(obj => console.log(obj.title)); // just an example

answered Sep 8, 2020 at 19:23

Rory McCrossan

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sidthesloth · Accepted Answer · 2020-09-08 19:19:23Z

2

const input = '{"title":"XYZ","id":"123"} {"title":"NPS","id":"124"}{"title":"LMW","id":"125"}';

const objects = input.split("}").filter(element => !!element).map(element => JSON.parse(element + "}"));;


objects.forEach(object => console.log(object["title"]));

answered Sep 8, 2020 at 19:19

sidthesloth

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