Why I can't parse JSON in JavaScript?

Question

JSON contains one object:

results[0] = { 'MAX(id)': 1 }

And this code doesn't work:

var text = results[0];
var obj = JSON.parse(text);
console.log(obj.MAX(id));

Your results[0] is already an object, not a JSON string, so no need to parse it. Then you should use obj['Max(id)'] because it's a string, not a method. — pawel
– pawel, Commented Jul 3, 2015 at 9:18

suvroc · Accepted Answer · 2015-07-03 09:18:12Z

1

results[0] is already an object type

You can parse only from string to object like this:

JSON.parse('{ "MAX(id)": 1 }');

answered Jul 3, 2015 at 9:18

suvroc

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Comments

TaoPR · Accepted Answer · 2015-07-03 09:18:18Z

1

Your object is already a JSON. You don't need to parse it. To access MAX(id) property, you can use [] notation as follows:

results[0] = { 'MAX(id)': 1 };
console.log(results[0]['MAX(id)']);

answered Jul 3, 2015 at 9:18

TaoPR

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Shilly · Accepted Answer · 2015-07-03 09:18:43Z

1

Your result[0] is a real javascript object. JSON.parse transforms text into objects, so you can't parse other objects with it.

answered Jul 3, 2015 at 9:18

Shilly

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ozil · Accepted Answer · 2015-07-03 09:20:45Z

1

    var results = { 'MAX(id)': 1 };
    //var text = results;
    //var obj = JSON.parse(text);
    alert(results['MAX(id)']);

answered Jul 3, 2015 at 9:20

ozil

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