[Medium] 📄 Best Practices

1. Why you shouldn't use index as a key in lists and iterators?

왜 index를 key 값으로 사용하면 안 되는가?

Vue, React 등 프레임워크 면접에서 자주 나오는 유사한 질문:

• What happens if there is no key in v-for?
• Why you shouldn't use index as a key in React lists and iterators?