Tolowercase Memes

Posts tagged with Tolowercase

JavaScript Is Weird

Javascript Webdev Programming Frontend

20 days ago 201.3K views 1 shares

JavaScript Is Weird

So you're telling me that adding the string 'b' to 'a' twice, then adding 'a' twice more, and calling toLowerCase() somehow produces "banana"? Yeah, that tracks. JavaScript's type coercion is basically that friend who always "helps" by making things infinitely more confusing. Here's what's happening: 'b' + 'a' gives you "ba". Then + + converts the next 'a' to NaN (because unary plus on a string that's not a number = NaN). "ba" + NaN = "baNaN". Add another 'a' and you get "baNaNa". Call toLowerCase() and boom—"banana". It's like JavaScript is gaslighting you into thinking this makes sense. The real question is: who discovered this, and what were they doing at 3 AM to stumble upon it?

To Lower And To Upper Aren't As Innocent As They Seem Just Saying

Programming Javascript Debugging Backend

2 months ago 246.2K views 0 shares

To Lower And To Upper Aren't As Innocent As They Seem Just Saying

Using toLowerCase() or toUpperCase() in your conditional logic? That's some big brain energy right there. Most devs just slap these methods on strings for case-insensitive comparisons without a second thought, but the real ones know this is a minefield of locale-specific chaos waiting to explode. The Turkish İ problem is legendary: in Turkish locale, the uppercase of 'i' is 'İ' (with a dot), not 'I', and lowercase 'I' becomes 'ı' (without a dot). So your innocent if (userInput.toLowerCase() === "admin") suddenly breaks when deployed in Turkey. There's also the German ß that uppercases to "SS", and Greek sigma has different lowercase forms depending on position. Unicode is wild, and these methods respect locale by default in some languages. Pro tip: use toLocaleUpperCase() or toLocaleLowerCase() when you actually care about proper linguistic handling, or better yet, use case-insensitive comparison methods that don't mutate strings. The lion knows what's up.