Unexpected token  in JSON at position 0 error on double quotes (") but works on single quote (')

Question

User-687613544 posted

 var entries = JSON.parse(data);   where  data = "{"locale_prompt": "test"}"   throws an exception  (double quote)

the error message is : Unexpected token in JSON at position 0 .

notes : data = "{"locale_prompt": "test"}" and is retrieved from ressouce file  :  {"locale_prompt": "test"}  
but if I hardcode data = '{"locale_prompt": "test"}' it works fine  (single quote)

How to fix it  ?

Best regards

Answer 1

User475983607 posted

Well, by definition JSON.parse() takes a string.

How to fix it  ?

Just use the object as is...

 var entries = data;

Or just 

data

Answer 2

User283571144 posted

Hi mously,

var entries = JSON.parse(data);   where  data = "{"locale_prompt": "test"}"   throws an exception  (double quote)

the error message is : Unexpected token in JSON at position 0 .

notes : data = "{"locale_prompt": "test"}" and is retrieved from ressouce file  :  {"locale_prompt": "test"}  
but if I hardcode data = '{"locale_prompt": "test"}' it works fine  (single quote)

How to fix it  ?

According to your description, I suggest you could try to use javascript slice method to remove the first double quote and the last double quote.

More details, you could refer to below codes:

    <script>
         
        $(function () {
            var data = '"{"locale_prompt": "test"}"'
            data = data.slice(1,-1)
            var entries = JSON.parse(data);
            alert(entries.locale_prompt)
        });

    </script>

Result:

Best Regards,

Brando