I am having a JSON response as
{ "-0.15323": "" }
How to Parse the -0.15323 part only? I mean say
var json = '{ "-0.15323": "" }'
var obj = JSON.parse(json);
Now
return obj;
should return me -0.15323 only. Slice is not a good option. Because the data may come in variable size.
That is a Javascript Object literal.
So you can use the Object.keys function, which is the simpler equivalent of doing a loop through all the enumerable properties with the for-in loop (like in Donal's example):
var ob = {
"-0.15323": ""
};
alert(Object.keys(ob)[0])or even the Object.getOwnPropertyNames function, which FYI gives access to both enumerable and non-enumerable properties. You can access your property with:
var ob = {
"-0.15323": ""
};
alert(Object.getOwnPropertyNames(ob)[0])Both are Ecmascript 5, and should be supported in all major browsers.
That json is an object, so you can do something like this:
var obj = { "-0.15323": "" };
var key;
for (key in obj) {
if (obj.hasOwnProperty(key)) {
console.log(key);
}
}
Here is a working example: http://jsfiddle.net/dndp2wwa/1/
parseFloat(Object.keys({"-1.2345":""})[0])
