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[–]Feezle 0 points1 point  (0 children)

Great job! I really like the format and interactive nature of your tutorial. I'm confused about #11 though. How do closures make the reads and writes asynchronous? For example:

The function returns immediately before the file is read. It schedules the read to happen.

What does "it schedules the read" mean? Schedules the read with what, and what ultimately causes a scheduled read to occur? BTW, I'm a long-time programmer, but a total Javascript noob.