How to store a javascript function in JSON

Question

I have a JS object I would like to save in Local Storage for future use, and I cannot parse it to a string.

Code:

JSON.stringify({
    a: 5,
    b: function (param) {
        return param;
    }
})

Result:

"{"a":5}"

How do I save it for future use, if not with JSON?

(And creating my own Lexer-Parser to interupt string function I dont think is an option)

Answer 1

I'd recommend this approach:

Store arguments and the body in your json:

{"function":{"arguments":"a,b,c","body":"return a*b+c;"}}

Now parse json and instantiate the function:

var f = new Function(function.arguments, function.body);

I think it's save