#shouldcomponentupdate

React Component Lifecycle

http://jsbin.com/siwuqey/edit?console,output

Frist Access

"------------- Root constructor" "------------- Root componentWillMount" "------------- Child constructor" "------------- Child componentWillMount" "------------- Child componentDidMount" "------------- Root componentDidMount"

Root state update (Child props update) "------------- Root shouldComponentUpdate" "------------- Root componentWillUpdate" "------------- Child componentWillReceiveProps" "------------- Child shouldComponentUpdate" "------------- Child componentWillUpdate" "------------- Child componentDidUpdate" "------------- Root componentDidUpdate"

Child Root state update (Child props update) "------------- Root shouldComponentUpdate" "------------- Root componentWillUpdate" "------------- Child componentWillReceiveProps" "------------- Child shouldComponentUpdate" "------------- Child componentWillUpdate" "------------- Child componentDidUpdate" "------------- Root componentDidUpdate"

Child state update "------------- Child shouldComponentUpdate" "------------- Child componentWillUpdate" "------------- Child componentDidUpdate"

shouldComponentUpdate 에서 setState 하여도 반영되지 않는 다. 레더링 여부만 처리한다.