Test Post

The Problem: Why My App Wasn’t Updating

I spent three hours today fighting with a variable that wouldn’t update on the screen. I was changing the variable in the code, but the UI stayed exactly the same.

The Rookie Mistake

I was trying to modify the variable directly, like this:

// ❌ WRONG
let count = 0;
function handleClick() {
  count = count + 1;
  console.log(count); // Prints 1, but UI doesn't change!
}