Function addModal

src/Modal.js:49–65

(topic, props)

  }

  addModal (topic, props) {
    let isReplace = false;
    modals = modals.map((m) => {
      if (m.id === props.id) {
        isReplace = true;
        m = props;
      }
      return m;
    });
    if (!isReplace) {
      modals.push(props);
    }

    this.setState({ modals, increase: true });
    document.body.style.height = '100%';
    document.body.style.overflow = 'hidden';
  }

  removeModal (topic, id) {
    let props;