An issue with JSON parsing is causing errors when dealing with double-quote strings

What causes the error in the following code snippet?

//Code
JSON.parse("{'name':'Khushal Khan'}");

leading to this error message:

//Response
SyntaxError: Unexpected token '

But why does this version work flawlessly?

//Code
JSON.parse('{"name":"Khushal Khan"}');

Expected Output:

//Response
Object {name: "Khushal Khan"}

Answer №1

The issue lies in the type of quotation marks utilized within your JSON string, rather than the outer quotes. According to the JSON specification, only double quoted strings are permitted. However, you have the flexibility to use either type of quote when passing your JSON string to the parse() function.

As stated in the JSON spec:

Answer №2

The issue does not lie in the use of " characters in your JavaScript string, but rather in the absence of these characters in your JSON strings.

Remember, JSON is distinct from JavaScript. JSON strings need to be enclosed within " characters.

As stated in the specification:

string = quotation-mark *char quotation-mark

and

quotation-mark = %x22      ; "

Answer №3

The issue lies in the use of double quotes for strings, rather than using single quotes as delimiters in the JSON format.

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