“Optionsknopf in React” Code-Antworten

Optionsknopf in React

  const [gender,setgender]=useState()

 const handlegender=(e)=>{
    setgender(e.target.value)
  }
 

 
 <form>
        
        <div>
          <label>Gender</label>
          <input type="radio" name="gender" value="male" onChange={handlegender} />
          Male
          <input type="radio" name="gender" value="Female" onChange={handlegender}/>
          Female
        </div>
      </form>
Developer FS

Reactjs -Optionsknopf aufchange

class App extends React.Component {
  constructor(props) {
    super(props);
    this.state = {};
  }

  handleChange = e => {
    const { name, value } = e.target;

    this.setState({
      [name]: value
    });
  };

  render() {
    return (
      <div className="radio-buttons">
        Windows
        <input
          id="windows"
          value="windows"
          name="platform"
          type="radio"
          onChange={this.handleChange}
        />
        Mac
        <input
          id="mac"
          value="mac"
          name="platform"
          type="radio"
          onChange={this.handleChange}
        />
        Linux
        <input
          id="linux"
          value="linux"
          name="platform"
          type="radio"
          onChange={this.handleChange}
        />
      </div>
    );
  }
}

Verwenden von Optionsfeldern in reagklassenbasierten Komponenten

class App extends React.Component {
  
  setGender(event) {
    console.log(event.target.value);
  }
  
  render() {
    return ( 
      <div onChange={this.setGender.bind(this)}>
        <input type="radio" value="MALE" name="gender"/> Male
        <input type="radio" value="FEMALE" name="gender"/> Female
      </div>
     )
  }
}

ReactDOM.render(<App/>, document.getElementById('app'));
talhadev

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