Imagine they (control structures) are like a police officer directing traffic around an accident, a really big accident. An accident that just about deleted the internets. They say turn, you turn. They say stop, you do it.

For is a control structure. It says ‘repeat this until Simon says stop.”‘

While is the same way.

If says ‘ONLY do this WHEN Simon says.’

That’s programming.

Oh, and else is the weird cling-on that follows If around and cleans up the leftover mess with a pooper-scooper.”

Using visual imagery to help me better understand how programming works, Chris has illustrated programming for me.