Uncaught syntaxerror: unexpected token I in JSON at position 1

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i got below error :

VM230:1 Uncaught SyntaxError: Unexpected token i in JSON at position 1
    at JSON.parse (<anonymous>)
    at eval (eval at <anonymous> (interactionEvents.html:4), <anonymous>:1:6)
    at interactionEvents.html:29
(anonymous) @ VM229:1
(anonymous) @ interactionEvents.html:29

What I have tried:

var a = "{id: 1, label: 'Node 1', title: 'I have a popup!'}";
JSON.parse(a)

Posted 27-May-19 2:26am

Pandurang Rane

Updated 19-Nov-21 11:30am

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CPallini · Answer 1 · 2019-05-27T02:33:00

Solution 1

{id: 1, label: 'Node 1', title: 'I have a popup!'}

Is an invalid JSON string. It should be

{"id": 1, "label": "Node 1", "title": "I have a popup!"}

Test it, for instance, here: JSONLint - The JSON Validator[^].
You can also use an online validator to check any JSON expression.
e.g. JSON Formatter & Validator[^]

Posted 27-May-19 2:33am

CPallini

Updated 27-May-19 2:36am

v3

Comments

TheRealSteveJudge 27-May-19 8:37am

5*Sorry I edited your question...
That was not my intent.

CPallini 27-May-19 8:39am

Not a problem at all. Thank you.

TheRealSteveJudge · Answer 2 · 2019-05-27T02:35:00

Solution 2

You should use double quotes.

{  
   "id":1,
   "label":"Node 1",
   "title":"I have a popup!"
}

Posted 27-May-19 2:35am

TheRealSteveJudge

Comments

CPallini 27-May-19 8:39am

Indeed, ahve my 5.

TheRealSteveJudge 27-May-19 8:41am

Thank you!

Member 15437457 · Answer 3 · 2021-11-19T11:30:00

Solution 4

Brilliant! I appreciate the solution #1. Fixed the mess up in local storage not all is working properly

Posted 19-Nov-21 11:30am

Member 15437457

Comments

CHill60 22-Nov-21 4:23am

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