React: Building Modern Web Applications

Now we're ready to display!

Here is the for loop mentioned earlier; it is considerably more readable with compare() and successor() pulled into their own variables with descriptive names rather than inline. For each day, the loop compiles a (possibly empty) list starting with one-time activities for that day, and checks all recurring calendar entries against it. For a recurring calendar entry, it starts out with accepts_this_date as true, indicating that the calendar entry does occur on that day, and then each of the criteria for a repeating date has a cumulative opportunity to say that the criterion they are checking is not met and veto that calendar entry happening on that day. If a recurring calendar entry passes through the gauntlet without ...