/Html/How to delete a html tag element in react

How to delete a html tag element in react

const Row = function(props){
  const {checked, value, onChange, onChecked} = props;
  return (
    <div>
      <input 
        type="checkbox" 
        checked={checked}
        onChange={onChecked}
        />
      <input type ="text" value={value}  onChange={onChange}/>
    </div>
  );
}

class App extends React.Component {
  constructor(props){
    super(props);
    this.state = {
      rows: [
        {value: 'row1', checked: false},
        {value: 'row2', checked: true},
        {value: 'row3', checked: false},
      ]
    };
  }
  
  updateValue = (e, idx) => {
    const rows = [...this.state.rows];  // copy array because we don't want to mutate the previous one
    rows[idx].value = e.target.value;
    this.setState({
        rows,
    });
  }
  
  onChecked = (idx) => {
    const rows = [...this.state.rows];  // copy array because we don't want to mutate the previous one
    rows[idx].checked = !rows[idx].checked;
    this.setState({
        rows,
    });
  } 
  
  addRow = () => {
    const rows = [...this.state.rows, 
                  {value:'', checked: false}
                 ];
    this.setState({
        rows,
    });
  }
  
  deleteRows = () => {
    this.setState({
      rows: this.state.rows.filter(e => !e.checked)
    });
  }
 
  render(){
    return(
      <div>
        {this.state.rows.map((row, idx) => {
          return(
              <Row 
                key={idx} 
                value={row.value}
                checked={row.checked}
                onChange={(e) => this.updateValue(e, idx)} 
                onChecked={() => this.onChecked(idx)}
                /> 
            )
        })
        }
        <button onClick={this.addRow}>
          add 
        </button>
        <button onClick={this.deleteRows}>
          delete
        </button>
      </div>
    );
  }
}

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

Source: stackoverflow.com

Similar codes

1 vote150 views6 answers
Bootstrap 4 cdn
Html
6 votes205 views6 answers
Json placeholder
Html
55 votes285 views6 answers
Basic html template
Html
1 vote207 views1 answer
Favicon icon in css font awesome
Html
0 vote207 views1 answer
Mailto tag with line break
Html
-1 vote190 views1 answer
<html> <frameset cols ="50%,50%"> <frame src ="vate.html"> </frame> <frame scr ="abosamra.html"> </frame> </frameset> </html>
Html
0 vote187 views1 answer
Mysql stop process
Html
8 votes213 views2 answers
Express send html file
Html
0 vote197 views3 answers
How can we change background in loop img in webpages
Html
0 vote200 views1 answer
How to display gif when button clicked html css
Html