React Hooks

Problem of Classical React

1. Classes confuse both people and machines
   (This binding, Binding event handlers...)
2. Complex components become hard to understand
   (이해가 어려운 복잡한 컴포넌트 + cDM, cDU, cWU...)
3. reusing stateful logic between components
   (로직 재활용에 유용한 HOC, render props의 문제점)

"Hook" the logic

필요한 것(stateful logic) 만 Hook하여 쓰자!