preact-material-components/docs/src/routes/radio/advanced-controlled-example.txt

preact wrapper for "Material Components for the web"

import { Component } from "preact";
import Radio from "preact-material-components/Radio";
import FormField from "preact-material-components/FormField";
import "preact-material-components/FormField/style.css";
import "preact-material-components/List/style.css";

export default class ControlledRadioExample extends Component {
  constructor() {
    super();
    this.state = {
      options: [
        { name: "Radio 1", checked: false },
        { name: "Radio 2", checked: false },
        { name: "Radio 3", checked: false }
      ]
    };
  }

  onChange = selectedIndex => {
    var updatedOptions = this.state.options.slice().map((option, index) => {
      option.checked = index === selectedIndex ? true : false;
      return option;
    });

    this.setState({
      options: updatedOptions
    });
  };

  render() {
    var controlledRadioElements = this.state.options.map((option, i) => {
      return (
        <FormField>
          <Radio
            id={`radio-${i}`}
            name="Controlled Options"
            checked={option.checked}
            onChange={this.onChange.bind(undefined, i)}
          />
          <label for={`radio-${i}`}>{option.name}</label>
        </FormField>
      );
    });

    return <div>{controlledRadioElements}</div>;
  }
}