Question

let’s say you’re passing an object to a function

{title:"my title", data:"corresponding data"}

how can I get the function to know what the names of the items/sub-objects are (title and data) without specifying them?

Answer 1

You can use a for loop as follows:

for (var key:String in obj) {
    var value:String = obj[key];
    trace(key + ": " + value);
}

Or use the introspection API.

The Flex 3 Help page on Performing Object Introspection has a good overview of these.