When one no isn't enough

Today’s treat, a cheat sheet. You know the no (!) expression, you use it all the time to check for falsy values. But what about the no-no (!!)? This is the one that turns value into a Boolean value.

Last week, I had to look it up for a specific case and thought to myself, “This won’t be the last time I need this.” So here it is, served on a silver plate, the !! cheat sheet.

This is really useful when you want a clean true or false, and not just something truthy or falsy.