In this lightning question Tom and Ed discuss the term 'full-stack'. What does it mean and is it even possible for one person to do all the things?

22: Why should you write tests?

A newbie coder and a seasoned veteran discuss the questions that always come up when someone begins learning to code.

Ed is looking at getting a career in programming and has been learning to code for just over a year. During this time he’s been building up a stack of questions that keep coming up from other newbie coders. Luckily, he’s got someone he can ask for help: Tom. Tom’s a seasoned coder, having worked in the industry for a few years now and has all the answers Ed needs, or does he?