FYI

这是另一个PoC实现:

没有任何库(例如lodash)用于debound 使用React Hooks API

我希望它能帮助你:)

import React, { useState, useEffect, ChangeEvent } from 'react';

export default function DebouncedSearchBox({
  inputType,
  handleSearch,
  placeholder,
  debounceInterval,
}: {
  inputType?: string;
  handleSearch: (q: string) => void;
  placeholder: string;
  debounceInterval: number;
}) {
  const [query, setQuery] = useState<string>('');
  const [timer, setTimer] = useState<NodeJS.Timer | undefined>();

  useEffect(() => {
    if (timer) {
      clearTimeout(timer);
    }
    setTimer(setTimeout(() => {
      handleSearch(query);
    }, debounceInterval));
  }, [query]);

  const handleOnChange = (e: ChangeEvent<HTMLInputElement>): void => {
    setQuery(e.target.value);
  };

  return (
    <input
      type={inputType || 'text'}
      className="form-control"
      placeholder={placeholder}
      value={query}
      onChange={handleOnChange}
    />
  );
}

这里已经有很多好的信息了，但为了简洁。这对我很有用……

import React, {Component} from 'react';
import _ from 'lodash';

class MyComponent extends Component{
      constructor(props){
        super(props);
        this.handleChange = _.debounce(this.handleChange.bind(this),700);
      }; 

在与文本输入斗争了一段时间后，我自己没有找到一个完美的解决方案，我在npm上发现了这个:react-debounce-input。

这里有一个简单的例子:

import React from 'react';
import ReactDOM from 'react-dom';
import {DebounceInput} from 'react-debounce-input';

class App extends React.Component {
state = {
    value: ''
};

render() {
    return (
    <div>
        <DebounceInput
        minLength={2}
        debounceTimeout={300}
        onChange={event => this.setState({value: event.target.value})} />

        <p>Value: {this.state.value}</p>
    </div>
    );
}
}

const appRoot = document.createElement('div');
document.body.appendChild(appRoot);
ReactDOM.render(<App />, appRoot);

DebounceInput组件接受您可以分配给普通输入元素的所有道具。在codeen上试试吧

我希望这也能帮助其他人，节省他们的时间。

你必须使用useCallback，正如在这篇博客中提到的:

https://www.freecodecamp.org/news/debounce-and-throttle-in-react-with-hooks/

import React, { useCallback } from 'react';
import debounce from 'debounce'; // or another package

function App() {
    ...
    const debouncedSave = useCallback(
        debounce(x => foo(x), 1000),
        [], // will be created only once initially
    );
    ...
}

看点:

import {useState} from "react";

const useDebounce = ({defaultTimeout = 250, defaultIdentifier = 'default'} = {}) => {

    const [identifiers, setIdentifiers] = useState({[defaultIdentifier]: null});

    return ({fn = null, identifier = defaultIdentifier, timeout = defaultTimeout} = {}) => {
        if (identifiers.hasOwnProperty(identifier)) clearTimeout(identifiers[identifier]);
        setIdentifiers({...identifiers, [identifier]: setTimeout(fn, timeout)});
    };
};

export default useDebounce;

并在任何地方使用它(在同一个文件中使用标识符以防止并发)，例如:

const debounce = useDebounce();

const handlerA = () => {
    debounce({fn: () => console.log('after 2000ms of last call with identifier A'), identifier: 'A', timeout: 2000});
};

const handlerB = () => {
    debounce({fn: () => console.log('after 1500ms of last call with identifier B'), identifier: 'B', timeout: 1500});
};

现在，React和React Native在2019年底有了另一个解决方案:

react-debounce-component

<input>
<Debounce ms={500}>
  <List/>
</Debounce>

它是一个组件，易于使用，体积小，支持广泛

例子:

import React from 'react';
import Debounce from 'react-debounce-component';

class App extends React.Component {
  constructor (props) {
    super(props);
    this.state = {value: 'Hello'}
  }
  render () {
    return (
      <div>
        <input value={this.state.value} onChange={(event) => {this.setState({value: event.target.value})}}/>
        <Debounce ms={1000}>
          <div>{this.state.value}</div>
        </Debounce>
      </div>
    );
  }
}

export default App;

我是这个组件的创建者