Variables hold a wide variety of information temporarily. The JavaScript data types that can be stored in a variable include: JavaScript variables can hold a few other kinds of data, but these are by ...

You are probably already familiar with JavaScript’s set of highly flexible variable types. We don’t need to review them here; they are very powerful and capable ...

Unix systems make it easy to make output that you don’t want to see simply disappear. Toss output into the void. Send errors in one direction, useful output in another. Something of a bit bucket, ...