Function onChange

src/Filter.js:98–105

(index, filter)

  }

  onChange (index, filter) {
    let filters = this.state.filters,
        f = filters[index];
    Object.keys(filter).forEach((k) => {
      f[k] = filter[k];
    });
    this.setState({ filters });
  }

  onFilter () {
    this.close();