`setTimeout()` Is NOT Part of JavaScript

Most developers write this code every day: ```js id="e9u2xa" setTimeout(() => { console.log("Hello"); }, 2000); and assume JavaScript is responsible for the timer. But that’s not actually true. ## The surprising reality JavaScript engines like V8 do **not** have built-in timer functionality. V8 only knows how to: * parse JavaScript * compile JavaScript * execute JavaScript That’s it. Functions like: * `setTimeout()` * `fetch()` * `addEventListener()` * `console.log()` are **not provided by JavaS