With this book, available freely here, I seek to polish the rough edges of my basic grasp on the language in general.
In that sense, the sections which follow are those concepts I described in the previous paragraph, organized by chapters.
NaN !== NaN
breakkeyword within a loop stops the looping control flow and moves on the next statement in the program, if any.
continuekeyword within a loop while somewhat similar to
breakdoes a fundamentally different thing. It causes causes control to jump out of the current iteration and continue with the next.