Almost Dropped The Course

That beautiful moment in CS101 when you discover arrays start at 0 and the equality operator has a twin brother. Nothing quite like the existential crisis of learning that 2 == 2.0 returns true because type coercion is just vibing in the background. Meanwhile you're sitting there wondering if your entire understanding of mathematics is a lie.

The double equals does type conversion before comparing (so the number 2 and the float 2.0 are considered equal), while triple equals would actually check if they're the same type too. But hey, at least you didn't learn this the hard way during a production bug at 3 AM like the rest of us did.