Simple JSON Object not Evaluating in Javascript

Question

Can someone tell me where I am going wrong with this class. It is not evaluating the raw string back to a JSON Type in Javascript and I am not entirely sure what I am doing wrong. When I run it through JS Lint it says that it is valid JSON.

Heres the Fiddle : http://jsfiddle.net/pGygM/1/

alex · Accepted Answer · 2012-03-06 11:45:24Z

3

You have a few issues...

jQuery isn't selected as the language in jsFiddle.
When using eval() to pass, wrap it in parenthesis so eval() doesn't think it's simply a block.
jQuery has $.parseJSON(), use that instead.
You have an array with a named key - that is not an array, but an object, and invalid JSON.
alert() won't help you debug the object as it will implicitly call toString() on the object, returning '[object Object]' which isn't too useful. Use console.log() instead.

answered Mar 6, 2012 at 11:45

alex

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2 Comments

zostay Over a year ago

And a an array opener, "[", is mismatched with an object closer, "}". Looks like you missed pressing Shift in a couple places, maybe?

DashK Over a year ago

Here's an updated JSFiddle with alex & zostay's comment: jsfiddle.net/XcyNk

Praveen Vijayan · Accepted Answer · 2012-03-06 11:57:32Z

0

JSON is wrong in cameras section. Check this

http://jsbin.com/ixucil/edit#javascript,html

HTML

<input type="hidden" id="testID" value='{
  "smo": {
    "grid_columns": 3,
    "grid_rows": 3,
    "cameras": {
        "camera": {
            "camera_id": 1,
            "row": 1,
            "column": 1
        }
    }
  }
}' />

JS

$(function(){
 var txtVal = $('#testID').val(),
 obj = $.parseJSON(txtVal);
 console.log(obj);
})

answered Mar 6, 2012 at 11:57

Praveen Vijayan

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