Does UnityScript (Javascript) support classes/structs?

I have not found an adequate answer to this question.

I need to keep track of positions of game objects I spawn via scripts. To do so, I would like to encapsulate the relevant data in a struct or class. I am wondering what it takes to do the equivalent in Javascript/UnityScript.

 struct NPC
 {
 float x;
 float y;
 float z;
 int age;
 float money;
 };

Does Javascript have an equivalent? I need to make arrays of these objects and rather than make 5 separate arrays of each type, I want to declare one array of just the object.

Thank you.