Who Is This Book For?
This book is aimed at intermediate JavaScripters. You should know how variables are scoped. Keywords like typeof, arguments, and this shouldnât faze you. Perhaps most importantly, you should understand that
| â | func(âfunctionâ(arg) { âreturnâ next(arg); }); |
is just a needlessly verbose way of writing
| â | func(next); |
except in rare cases. (See Reg Braithwaiteâs excellent article âCaptain Obvious on JavaScriptâ for more examples of small but important functional idioms.)[5]
What you donât need to know is how asynchronous events are scheduled in JavaScript. Weâll cover that in the next chapter.
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