反应数据网格MulitSelect过滤器

Question

有人可以在这里解释setFilters在做什么，但我不明白它是如何声明的以及它在做什么。我正在尝试实现react-data-grid。我可以过滤一列，但是当我选择另一列时，它将覆盖以前保存的过滤器选择。

如果有人举了setFilter的示例，我将不胜感激。

import React, { useState } from "react";
import ReactDOM from "react-dom";
import ReactDataGrid from "react-data-grid";
import { Toolbar, Data } from "react-data-grid-addons";
import createRowData from "./createRowData";

import "./styles.css";

const defaultColumnProperties = {
  filterable: true,
  width: 120
};

const selectors = Data.Selectors;

const columns = [
  {
    key: "street",
    name: "Street"
  },
  {
    key: "zipCode",
    name: "ZipCode"
  },
  {
    key: "date",
    name: "Date"
  },
  {
    key: "jobTitle",
    name: "Job Title"
  },
  {
    key: "catchPhrase",
    name: "Catch Phrase"
  },
  {
    key: "jobArea",
    name: "Job Area"
  },
  {
    key: "jobType",
    name: "Job Type"
  }
].map(c => ({ ...c, ...defaultColumnProperties }));

const ROW_COUNT = 50;

const handleFilterChange = filter => filters => {
  const newFilters = { ...filters };
  if (filter.filterTerm) {
    newFilters[filter.column.key] = filter;
  } else {
    delete newFilters[filter.column.key];
  }
  return newFilters;
};

function getRows(rows, filters) {
  return selectors.getRows({ rows, filters });
}

function Example({ rows }) {
  const [filters, setFilters] = useState({});
  const filteredRows = getRows(rows, filters);
  return (
    <ReactDataGrid
      columns={columns}
      rowGetter={i => filteredRows[i]}
      rowsCount={filteredRows.length}
      minHeight={500}
      toolbar={<Toolbar enableFilter={true} />}
      onAddFilter={filter => setFilters(handleFilterChange(filter))}
      onClearFilters={() => setFilters({})}
    />
  );
}

const rootElement = document.getElementById("root");
ReactDOM.render(<Example rows={createRowData(50)} />, rootElement);