Why does JSON.parse() throw Uncaught SyntaxError: Unexpected token when trying to parse a simple json object?

Question

The following two lines of javascript code cause the Uncaught SyntaxError:

    var testObj = JSON.parse('{ testFunc: function () { console.log("whoa there"); }}');

    testObj["testFunc"]();

I don't understand what is invalid about my json string.

jsonlint.org will tell you. What you have is simply not JSON. — Felix Kling
– Felix Kling, Commented Jul 27, 2012 at 16:54

Leonard · Accepted Answer · 2012-07-27 16:54:27Z

5

As far as I am aware, that is not a JSON string, but rather javascript held by a string literal. JSON is, just like XML, a means to represent data across multiple platforms. Please have a look at the specification for JSON:

http://www.json.org

If you want to pass values that are actually functions, you need to use the javascript eval method alternatively let JSON string values work as keys to an object that maintains these methods.

edited Jul 27, 2012 at 16:54

answered Jul 27, 2012 at 16:49

Leonard

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Nogwater · Accepted Answer · 2012-07-27 16:49:16Z

3

JSON doesn't allow for inline function definitions... that's JavaScript.

http://json.org/

answered Jul 27, 2012 at 16:49

Nogwater

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