ReactJS이론

이 안에 들어가는 모든 엘리먼트는 React DOM에서 관리하기 때문에 이것을 루트 DOM 노드라고 한다.So, we can use ReactDOM.render() to transfer reactDOM TO root DOM node.The only thing we ca

내용 React component can be divided to many pieces and we can look into them individually. It is similiar to javascript function. It receive input call

We have to define class component not function component to use "state" and "lifecycle method."Here's a example.To understand this code, we need look

In javascript, Class method isn't binded to class. So we have to bind class method by using bind() method. Like below.When we call "callback function"