How to parse this string into json object?

Question

I have this string

var str = '{"{\n  \"lightid\": \"ID1\",\n  \"brightness\": \"123\",\n  \"RGB\": \"1,2,3\"\n}":""}';

How do I parse it into JSON object?

You need to use `JSON.parse()`, but your string is not a valid json — R3tep, Mar 26 '19 at 09:21
I know that's not a vaild json, how do i convert into a valid one so I can parse it ? — user3736228, Mar 26 '19 at 09:22
Why do you have an object key with an empty string as the value? — Jack Bashford, Mar 26 '19 at 09:22
Actually that's the return result from the server. I need to validate and convert to valid json in order to parse it. — user3736228, Mar 26 '19 at 09:24
a json is {key : value} keep only the {object} in the first brackets. your string looks more like {{object}:value} and this is wrong. — Nico, Mar 26 '19 at 09:26

score 0 · Answer 1 · answered Mar 26 '19 at 09:24

0

Just call:

JSON.parse('{\n  \"lightid\": \"ID1\",\n  \"brightness\": \"123\",\n  \"RGB\": \"1,2,3\"\n}');

answered Mar 26 '19 at 09:24

Shadowalker

9
2

It's different string than in question – barbsan Mar 26 '19 at 09:29

score 0 · Answer 2 · answered Mar 26 '19 at 09:29

Your json string is malformed. Currently, it is:

var str = '{"{\n  \"lightid\": \"ID1\",\n  \"brightness\": \"123\",\n  \"RGB\": \"1,2,3\"\n}":""}';

which evaluates to

{"{
   "lightid": "ID1",
   "brightness": "123",
   "RGB": "1,2,3"
}":""}

You need to use:

var str = '{\n  \"lightid\": \"ID1\",\n  \"brightness\": \"123\",\n  \"RGB\": \"1,2,3\"\n}'

And use the default JSON parser:

var jsObj = JSON.parse(str);
console.log("jsonObj.brightness", jsonObj.brightness);

It seems you will have a list of such values. In this case, the probable construct will be:

var str = '[ {\n  \"lightid\": \"ID1\",\n  \"brightness\": \"123\",\n  \"RGB\": \"1,2,3\"\n}, \n {\n  \"lightid\": \"ID2\",\n  \"brightness\": \"246\",\n  \"RGB\": \"2,4,6\"\n} ]'
var jsArr = JSON.parse(str);
console.log("jsonObj[0].brightness", jsonObj[0].brightness);

How to parse this string into json object?

2 Answers2