Floating point Memes

Ah, the eternal JavaScript nightmare: NaN (Not a Number) - which ironically is a number type that doesn't equal itself. Because that makes perfect sense! The IEEE 754 floating-point standard really outdid itself here. "Let's create a special value that represents calculation errors but make it behave in the most counterintuitive ways possible!" My favorite part is JavaScript trying to be helpful: "You want to convert 'hello' to a number? Sure thing! Here's a NaN for your trouble. No errors thrown, just silent mathematical chaos." And then we wonder why our date calculations suddenly think it's the year NaN. The hex(983061) at the bottom is the cherry on top - it's 0xF00D61, or "FOOD A1". Even the hexadecimal is trolling us.

JavaScript's parseInt() function is like that one coworker who ignores all your emails until you add exactly seven zeroes after the decimal point. The function stubbornly returns 0 for every decimal value, until suddenly—at 0.0000005—it decides "Oh, I see a 5 now!" and returns 5. It's like watching someone squint harder and harder at tiny text until they finally give up and just read whatever letter they think they see. The floating point precision gods have spoken, and they've chosen chaos.

JavaScript's parseInt function just decided that 0.0000005 equals 5 because scientific notation turned it into "5e-7" and parseInt grabbed just the "5" like a toddler picking only the M&Ms out of trail mix. Six decimal places? Nah, too much work. Five? Still zero. Seven? BOOM, suddenly 5. It's like JavaScript was programmed by someone rolling dice to determine behavior. No wonder developers drink.