/Javascript/React/React text input onchange

React text input onchange

class NameForm extends React.Component {
  constructor(props) {
    super(props);
    this.state = {value: ''};
    this.handleChange = this.handleChange.bind(this);
    this.handleSubmit = this.handleSubmit.bind(this);
  }

  handleChange(event) {    this.setState({value: event.target.value});  }
  handleSubmit(event) {
    alert('A name was submitted: ' + this.state.value);
    event.preventDefault();
  }

  render() {
    return (
      <form onSubmit={this.handleSubmit}>
        <label>
          Name:
          <input type="text" value={this.state.value} onChange={this.handleChange} />        </label>
        <input type="submit" value="Submit" />
      </form>
    );
  }
}

Source: reactjs.org

Handle onchange react

import React, { Component } from 'react';

import './App.css';
import Header from './Header';

class App extends Component {

  constructor(props) {
    super(props);
   this.state = {name: "Michael"}

  }
   changeTitle = (e) =>{
      this.setState({name: e.target.value});
    }

  render() {
    return (
      <div className="App">
        <Header title={this.state.name}/>
        <p className="App-intro">
          Type here to change name.
        <input type="text" onChange={this.changeTitle}/>
        </p>
      </div>
    );
  }
}

export default App;

Source: stackoverflow.com

Similar codes

2 votes267 views1 answer
Audio react
Javascript React
0 vote270 views2 answers
Why we use react js
Javascript React
1 vote257 views1 answer
React index.js BrowserRouter
Javascript React
11 votes296 views2 answers
React must be in scope when using jsx
Javascript React
5 votes289 views3 answers
How to open a new tab in react
Javascript React
0 vote293 views1 answer
React set state before render
Javascript React
1 vote311 views1 answer
"react native" component dynamic children props
Javascript React
16 votes310 views3 answers
Start react native
Javascript React
1 vote292 views1 answer
How to redirect in ionic react
Javascript React
0 vote357 views1 answer
Invariant Violation: [React Intl] An `id` must be provided to format a message.
Javascript React