Down the Rabbit Hole: Javascript in Wonderland

Talk by Claudia Hernández, on a few of Javascript’s oddities and (un)expected behaviors:

There’s a presentation embedded in this post. View it on Speaker Deck.

For a language originally created in 10 days it surely has a lot of quirks and perks many JS developers are unaware of. Sometimes, it might even seem like we fell down the rabbit hole only to find that NaN is actually a Number, undefined can be defined, +!![] equals 1, Array.sort() may not work as you suspected and so much other nonsense that can trip any JS developer’s mind.