javascript - Can I use a variable to pass a json string? - Stack Overflow

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This code works:

$(this).load($('.pageloadlabel', this).attr('href'), {category: 1});

This code doesn't work:

var data = '{category: 1}';
$(this).load($('.pageloadlabel', this).attr('href'), data);

The question is, how can I make it work?

This code works:

$(this).load($('.pageloadlabel', this).attr('href'), {category: 1});

This code doesn't work:

var data = '{category: 1}';
$(this).load($('.pageloadlabel', this).attr('href'), data);

The question is, how can I make it work?

• javascript
• jquery

Share Improve this question Follow edited Aug 31, 2015 at 10:18 Nuwan 1,38411 gold badge1414 silver badges3939 bronze badges asked Jul 28, 2010 at 17:10 C. E.C. E. 10.6k1111 gold badges5656 silver badges7979 bronze badges 1

• 2 Try removing the quotes around the JSON when you assign to data. – i_am_jorf Commented Jul 28, 2010 at 17:12

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4 Answers 4

Sorted by: Reset to default 2

Your data is not a Javascript object but a string, you can convert it to object by eval e.g.

data = eval('(' + data + ')');

but eval is considered dangerous, so better to parse string as JSON e.g.

data = JSON.parse(data)

For JSON lib you can use json2

It's not JSON, it's a javascript object.

var data = { category: 1 };

If you have a string, you would have to convert it to a object.

And notice that your string is not a valid JSON, see the link for more details.

Take out the quotes, the load function is expecting an object, not a string.

Have you tried to use eval() on data?

var data = '{category: 1}';
$(this).load($('.pageloadlabel', this).attr('href'), eval(data));

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