Getting first JSON property

Question

Is there a way to get the name of the first property of a JSON object?

I\'d like to do something like this:

var firstProp = jsonObj[0];

<

Answer 1

There isn't a "first" property. The properties of an object are unordered.

You can get whatever one the JS engine decides to provide first with a loop.

function maybe_first_in_object(ob) {
    for (var props in ob) {
        return prop;
    }
}

… but if the order matters, use an array not an object.