<< I've been doing JavaScript for 5 years. >> << I'm an expert!!! >> << Can you explain what a closure is? >> << Uh... no, I don't know. >> << Can you explain what a prototype is? >> << Uh... no, I don't know. >> << Can you explain what a Symbol is? >> << Uh... no, I don't know. >> << Can you explain how the event loop works? >> << Uh... no, I don't know. >> << Can you explain hoisting? >> << Uh... no, I don't know. >> << Do you still feel like an expert? >> << Uh... I don't know. >>