javascript - How to prevent removing decimal point when parsing JSON?

Question

If you do this...

var parsed = JSON.parse('{"myNum":0.0}') ;

Then when you look at parsed.myNum, you just get 0. (Fair enough.)

If you do parsed.myNum.toString(), you get "0".

Basically, I'm looking for a way to turn this into the string "0.0".

Obviously, in real life I don't control the JSON input, I get the JSON from a web service... I want to parse the JSON using the browser's JSON parser, and to be able to recognise the difference between the number values 0 and 0.0.

Is there any way to do this, short of manually reading the JSON string? That's not really possible in this case, I need to use the browser's native JSON parser, for speed. (This is for a Chrome extension by the way; no need to worry about it working in other browsers.)

Answer 1

If 0.0 is not enclosed in quotes in your JSON (i.e. it's a number and not a string), then there's no way to distinguish it from 0, unless you write your own JSON parser.