before 3.3.3
at 3.3.3, tmp check point
3.3.3 done
day 2, before exercises
day 2 start doing exercises
done exercise #3, tmp check point
day 2: exercise 4 done
meet with problem at exercise #5
day 2 exercise, done #6
exercise #5 quick fix
exercise for day-2 is done
append some hints to day 2 exercises
slight modification & day 3 at coroutine
Merge branch 'io-day-2' into io-day-3
exercise solution improvement
day 3, before exercise
use 'isKindOf' rather than comparing against 'type'
start day 3 exercises
fix: 'isKindOf' is a better practice
handy feature 'interpolate'! Use it in my code!