Mental models Memes

Posts tagged with Mental models

The Horrifying Truth About JavaScript Arrays

Javascript Webdev Programming Frontend

17 days ago 136.6K views 0 shares

The Horrifying Truth About JavaScript Arrays

The moment when JavaScript's existential truth bomb hits you like a freight train. In JS, arrays are just objects where the keys happen to be sequential numbers! That calm developer on the left is about to have their entire worldview shattered with this realization. It's that special kind of programming horror when you realize your mental model of a fundamental data structure was a comfortable lie. Next thing you know, you're trying myArray["1"] instead of myArray[1] just to prove to yourself that reality is broken. Welcome to JavaScript, where arrays are objects, undefined is not null, and NaN !== NaN. Sweet dreams!

Algorithms Existed Before Computers

Algorithms Programming Debugging

2 months ago 183.5K views 0 shares

Algorithms Existed Before Computers

The evolution of programmer enlightenment in four stages: Stage 1: "I need my fancy code editor with syntax highlighting and autocomplete or I'll die." Basic brain activation. Stage 2: "I'll just write this in Notepad and compile it later." Brain getting warmer. Stage 3: "Ada Lovelace wrote the first algorithm in 1843 without even seeing a computer." Brain approaching enlightenment. Stage 4: "I solved this entire distributed system design in the shower this morning." Complete transcendence. Meanwhile, the rest of us are still trying to remember if we used tabs or spaces in that file we started yesterday.