setTimeout1 리액트 React 삼항연산자, setTimeout, state 값 변경 알아보기 App.js import React from "react"; import PropTypes from "prop-types"; // render() -> mount -> componentDidMount() -> 6s class App extends React.Component { state = { isLoading: true, movies: [] }; componentDidMount() { setTimeout(() => { this.setState({isLoading : false}); }, 6000); } render() { const { isLoading } = this.state; return {this.state.isLoading ? "Loading...": "We are ready"}; } } e.. 2020. 11. 9. 이전 1 다음