JSON undefined in IE7

问题:

I am using the following line of JQuery code:

$.get('/ajax/buy', {'categoryname':chosenSelected}, function(data) {
   data = JSON.parse(data);
...

However, when running it on IE7 I get this error message: JSON undefined:.

How can I use the parser with compatibility to IE7 (and all major browsers)?

回答1:

You can use parseJSON available in jQuery.

回答2:

You don't need to parse JSON manually. You could use the getJSON function:

$.getJSON('/ajax/buy', { 'categoryname' : chosenSelected }, function(data) {

    // data will be already a parsed JSON object
});

The parse method you are trying to call is available in the json2 library.

回答3:

You need add a JSON parser. The old browsers dont include that.

1 - Go to repository: https://github.com/douglascrockford/JSON-js/

2 - Download and include json2.js in your site or app.

That is all.