✨ Read this must-read post from Hacker News 📖 📂 Category: ✅ Key idea: Using await in loops seems intuitive until your code silently stalls or runs slower than expected. If you’ve ever wondered why your API calls run one-by-one instead of all at once, or why map() and await don’t mix the way you’d expect, grab a chair. Let’s chat. The problem: awaiting in a for loop Suppose you’re fetching a list of users one-by-one: const users = [1, 2, 3]; for (const id of users) 🔥 This works, but it runs sequentially: fetchUser(2) doesn’t start until fetchUser(1) finishes.…
