How to declare a json string correctly?

Question

So I tested two ways of declaring a json string:

1:

json = "{'name': 'ajsie'}";
obj = JSON.parse(json); // SyntaxError: Unexpected token ILLEGAL

2:

json = '{"name": "ajsie"}';
obj = JSON.parse(json); // Worked!

What is the problem with the first one?

Answer 1

Single quotes are not a valid quote character for strings. From http://www.json.org/: "A value can be a string in double quotes..."

Answer 2

json.org defines a string to use " instead of '. That's my guess.