Parse json in javascript - long numbers get rounded

Question

I need to parse a json that contains a long number (that was produces in a java servlet). The problem is the long number gets rounded. When this code is executed: ``` var s = '{"x":6855337641038665531}'; var obj = JSON.parse(s); alert (obj.x); ``` the output is: ``` 6855337641038666000 ``` see an example here: http://jsfiddle.net/huqUh/ why is that, and how can I solve it?

Accepted Answer

As others have stated, this is because the number is too big. However, you can work around this limitation by sending the number as a string like so:

```
var s = '{"x":"6855337641038665531"}';
```

Then instead of using JSON.parse(), you can use a library such as javascript-bignum to work with the number.

Parse json in javascript - long numbers get rounded

Solution

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