Why is my JavaScript breaking with 'Unexpected token' errors?

The Answer: You're probably missing a semicolon somewhere! 😅

JavaScript has something called "Automatic Semicolon Insertion" (ASI), but it doesn't always work the way you expect. Sometimes a missing semicolon can cause the next line to be interpreted as part of the previous statement.

Common scenarios:

// This breaks:
let a = 5
let b = 10
[1, 2, 3].forEach(console.log) // Error!

// JavaScript sees this as:
let a = 5let b = 10[1, 2, 3].forEach(console.log)

How to avoid this:

1. Use a linter like ESLint with semicolon rules
2. Be consistent - either always use semicolons or never use them
3. Use Prettier to automatically format your code
4. Learn the ASI rules if you want to go semicolon-free

My recommendation: Just use semicolons. It's clearer, more explicit, and prevents these weird edge cases. Your future self will thank you! 🙏