Method constructor

examples/04 Sortable/Stress Test/Container.js:14–33

(props)

@DragDropContext(HTML5Backend)
export default class Container extends Component {
  constructor(props) {
    super(props);

    this.moveCard = this.moveCard.bind(this);
    this.drawFrame = this.drawFrame.bind(this);

    const cardsById = {};
    const cardsByIndex = [];

    for (let i = 0; i < 1000; i += 1) {
      const card = { id: i, text: name.findName() };
      cardsById[card.id] = card;
      cardsByIndex[i] = card;
    }

    this.state = {
      cardsById,
      cardsByIndex,
    };
  }

  moveCard(id, afterId) {
    const { cardsById, cardsByIndex } = this.state;