👨‍💼 Great work! You've seen the critical difference between loose and strict equality.

🦉 The key takeaway: always use === and !== in your code. Loose equality (== and !=) can lead to confusing bugs because of its type coercion rules.

For example, these are all true with loose equality:

'' == false // true
0 == '' // true
null == undefined // true

With strict equality, different types are never equal, which is almost always what you want.

TypeScript actually helps here—if you try to compare incompatible types with ===, TypeScript will warn you that the comparison will always be false!