JSON string to JavaScript object error

Question

I have a string:

{
  "key1": "val1",
  "key2": "",
  "keyObj": {
    "key3": 300,
    "key4": 259200
  }
}

I'm trying to convert it to the javascript object with:

 JSON.parse(my_str.toString());

But i'm getting error: SyntaxError: Unexpected token o

Why?

Thank you

Post all your code. Based on the posted info, it works just fine. — Alex Filipovici
– Alex Filipovici, Commented Nov 29, 2013 at 8:49

Community · Accepted Answer · 2017-05-23 12:12:43Z

2

my_str seems to be already an object. So you just don't need to use `JSON.parse.

Because, probably, my_str.toString() is equal to

[object Object]
 ^---------------- Unexpected token o

If you use jQuery.ajax remember that jQuery convert automatically JSON input data if it match coherent header

Content-type: application/jso

and/or if you set the .ajax option

dataType:'json'

if you're declaring manually my_str = then simply you should add quotes around the string (and put it into a single line or use some tip in order to do multiline string)

var my_str = '{"key1":"val1","key2":"","keyObj":{"key3":300,"key4":259200}}';

but doing manually has not much sense.

edited May 23, 2017 at 12:12

CommunityBot

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answered Nov 29, 2013 at 8:51

Luca Rainone

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