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How to write AMD compatible JavaScript classes?

What is the best method for writing AMD compatible JavaScript classes to be used as part of a modular app?

I usually write my classes using the singleton approach. Unless there is some trick to making it work with AMD, this does not appear to be compatible.

Solution

  • Well, we use AMD, and most of our files are singletons. We actually don't really declare a 'class' to only be used once (singleton) - we specifically define the one object instance, though to some people that's just a technical distinction. Here's an example:

    // mylib.js
define(["otherlib"],

function(otherlib) {

return {
  doThing: function() {
    return otherlib.action("thing");
  }
};
});

    In case you're wondering: Requiring this file 7 times will actually return the very same object each time - it won't get recreated.