Answers for "componentwillunmount react"

Whatever

react native class component constructor

import React from 'react';  
import { View, TextInput } from "react-native";

class App extends React.Component {  
  constructor(props){  
    super(props);  
    this.state = {  
         name: "" 
      }  
    this.handleChange = this.handleChange.bind(this);  
  }
  handleChange(text){
    this.setState({ name: text })
    console.log(this.props);  
  }  
  render() {  
    return (  
    <View>
      <TextInput 
      	value={this.state.name} 
  		onChangeText={(text) =>this.handleChange(text)}
      />
    </View>  
  }  
}  
export default App;

Posted by: Guest on August-28-2020

Source

componentDidUpdate

componentDidUpdate(prevProps, prevState) {
  if (prevState.pokemons !== this.state.pokemons) {
    console.log('pokemons state has changed.')
  }
}

Posted by: Guest on November-10-2020

Source

componentWillUnmount

class Clock extends React.Component {
  constructor(props) {
    super(props);
    this.state = {date: new Date()};
  }

  componentDidMount() {
    this.timerID = setInterval(
      () => this.tick(),
      1000
    );
  }

  componentWillUnmount() {
    clearInterval(this.timerID);
  }

  tick() {    this.setState({      date: new Date()    });  }
  render() {
    return (
      <div>
        <h1>Bonjour, monde !</h1>
        <h2>Il est {this.state.date.toLocaleTimeString()}.</h2>
      </div>
    );
  }
}

ReactDOM.render(
  <Clock />,
  document.getElementById('root')
);

Posted by: Guest on September-02-2021

Source

shouldcomponentupdate

shouldComponentUpdate(nextProps, nextState) {
  return true;
}

Posted by: Guest on June-08-2020

Source

component did mmount

componentDidUpdate(prevProps, prevState, snapshot)

Posted by: Guest on May-01-2020

Source

Code answers related to "componentwillunmount react"

Code answers related to "Whatever"

Browse Popular Code Answers by Language

Python

Javascript

Whatever

Shell/Bash

CSS

Html

PHP

SQL

Java

Answers for "componentwillunmount react"

Code answers related to "componentwillunmount react"

Code answers related to "Whatever"

Browse Popular Code Answers by Language

Popular Programming Languages

Advertisements

Company

Compilers

Help

Connect with us