reactjs - React Hook useEffect 缺少依赖项 : 'list'

Question

运行以下代码后，出现以下错误:

React Hook useEffect has a missing dependency: 'list'. Either include it or remove the dependency array react-hooks/exhaustive-deps

我找不到警告的原因。

import React, { useState, useEffect } from 'react';
import axios from 'axios';
import Form from './Form';

const App = () => {
  const [term, setTerm] = useState('pizza');
  const [list, setList] = useState([]);

  const submitSearch = e => {
    e.preventDefault();
    setTerm(e.target.elements.receiptName.value);
  };

  useEffect(() => {
    (async term => {
      const api_url = 'https://www.food2fork.com/api';
      const api_key = '<MY API KEY>';

      const response = await axios.get(
        `${api_url}/search?key=${api_key}&q=${term}&count=5`
      );

      setList(response.data.recipes);
      console.log(list);
    })(term);
  }, [term]);

  return (
    <div className="App">
      <header className="App-header">
        <h1 className="App-title">Recipe Search</h1>
      </header>
      <Form submitSearch={submitSearch} />
      {term}
    </div>
  );
};

export default App;

Answer 1

在你的 useEffect 中，你正在记录 list:

console.log(list);

因此，您需要删除上面的行，或者将 list 添加到末尾的 useEffect 依赖项中。 所以改变这一行

}, [term]);

至

}, [term, list]);