CODEWITHSUNDEEP
javascriptjson
Shawn
Shawn

Reputation: 11411

Why doesn't JSON.parse work?

Why doesn't JSON.parse behave as expected? In this example, the alert doesn't fire: 

<html xmlns="http://www.w3.org/1999/xhtml">

    <head>
        <title>Testing JSON.parse</title>
        <script type="text/javascript" src="js/json2.js">
            // json2.js can be found here: https://github.com/douglascrockford/JSON-js/blob/master/json2.js
        </script>
        <script type="text/javascript">
            function testJSONParse()
            {
                var text = '[{"a":"w","b","x"},{"a":"y","b":"z"}]';
                alert(JSON.parse(text));
            }
            window.onload = testJSONParse;
        </script>
    </head>
    <body>

    </body>
</html>

In firefox, the Error Console says "JSON.parse". Not very descriptive..

This is a simplification of a problem I have which uses AJAX to fetch data from a database and acquires the result as a JSON string (a string representing a JSON object) of the same form as text in the example above.

Upvotes: 4

Views: 13674

Answers (2)

Praveen Prasad
Praveen Prasad

Reputation: 32137

error in typing

var text = '[{"a":"w","b":"x"},{"a":"y","b":"z"}]';

//below is correct one
var text = '[{"a":"w","b":"x"},{"a":"y","b":"z"}]';
alert(JSON.parse(text));

Upvotes: 2

gen_Eric
gen_Eric

Reputation: 227310

Your JSON is not formatted correctly:

var text = '[{"a":"w","b","x"},{"a":"y","b":"z"}]';
                         ^-- This should be a ':'

It should be:

var text = '[{"a":"w","b":"x"},{"a":"y","b":"z"}]';

Upvotes: 10

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