下面这段话是从http://docs.jquery.com/Tutorials:How_jQuery_Works中" Callbacks, Functions, and 'this'"中看到的: A callback is a function that is passed as ...

Asynchronous code (async code) says: go do something while I do other things, then let me know what happened when the results are ready. Also known as concurrency, async is important in a variety of ...

Node.js is a lean, fast, cross-platform JavaScript runtime environment that is useful for both servers and desktop applications. Scalability, latency, and throughput are key performance indicators for ...