Created
September 18, 2018 15:35
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| import React, { Component } from 'react'; | |
| // import axios from 'axios'; | |
| import AnotherComponent from './AnotherComponent'; | |
| import Todo from './Todo'; | |
| import ParentComponent from './ParentComponent'; | |
| export default class App extends ParentComponent { | |
| constructor(props) { | |
| super(props); | |
| this.state = { | |
| val: "Click me to change me" | |
| } | |
| console.log("constructor executed"); | |
| } | |
| componentDidMount = () => { | |
| throw "error"; | |
| } | |
| componentWillUnmount = () => { | |
| console.log("component unmounted..."); | |
| } | |
| static getDerivedStateFromProps(nextProps, prevState) { | |
| console.log("getDerivedStateFromProps() executed", nextProps, prevState); | |
| return null; | |
| } | |
| getSnapshotBeforeUpdate = (prevProps, prevState) => { | |
| console.log("getSnapshotBeforeUpdate() executed", prevProps, prevState); | |
| } | |
| componentDidUpdate = (prevProps, prevState) => { | |
| console.log("componentDidUpdate() executed", prevProps, prevState); | |
| } | |
| render() { | |
| console.log("component rendered.."); | |
| return ( | |
| <div> | |
| <h2> | |
| This component will not be rendered because the error was thrown during mount... | |
| </h2> | |
| </div> | |
| ) | |
| } | |
| } | |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| import React, { Component } from 'react' | |
| export default class ParentComponent extends Component { | |
| constructor(props) { | |
| super(props); | |
| this.state = {}; | |
| console.log("constructor"); | |
| } | |
| componentDidMount = () => { | |
| console.log("componentDidMount() from parent component"); | |
| } | |
| static getDerivedStateFromProps(nextProps, prevState) { | |
| console.log("getDerivedStateFromProps() from parent..."); | |
| } | |
| render() { | |
| console.log("render parent"); | |
| return ( | |
| <div> | |
| <h1>Rendering parent component...</h1> | |
| </div> | |
| ) | |
| } | |
| } |
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