I was further convinced this week that the world needs JASPA when my Flash developer colleague asked me about closures in JavaScript. He’s been knee-deep in AS3 for almost a year, so JavaScript must seem rather weak now.

Unlike JavaScript and AS2, AS3 supports method closures implicitly; so I made sure they were built into the JAS language. Such a thing is not native to JavaScript so the JASPA compiler automatically generates a call to helper function jaspa.closure whenever an object’s method is referenced.

If you’ve ever used Delegate.create in AS2, then you’ve encountered this issue. If you don’t see the problem, consider this example in JavaScript:
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