你也可以使用自己编写的mixin，就像这样:

var DebounceMixin = {
  debounce: function(func, time, immediate) {
    var timeout = this.debouncedTimeout;
    if (!timeout) {
      if (immediate) func();
      this.debouncedTimeout = setTimeout(function() {
        if (!immediate) func();
        this.debouncedTimeout = void 0;
      }.bind(this), time);
    }
  }
};

然后像这样在你的组件中使用它:

var MyComponent = React.createClass({
  mixins: [DebounceMixin],
  handleClick: function(e) {
    this.debounce(function() {
      this.setState({
        buttonClicked: true
      });
    }.bind(this), 500, true);
  },
  render: function() {
    return (
      <button onClick={this.handleClick}></button>
    );
  }
});

与其在debounce()中包装handleOnChange，不如在debounce()中包装回调函数中的ajax调用，从而不破坏事件对象。就像这样:

handleOnChange: function (event) {
   debounce(
     $.ajax({})
  , 250);
}

我在这个问题下找不到任何答案，提到我正在使用的方法，所以只想在这里提供一个替代解决方案，我认为这是最适合我的用例。

如果您正在使用流行的react钩子工具包库react-use，那么有一个名为useDebounce()的实用工具钩子，它以一种相当优雅的方式实现了谴责逻辑。

const [query, setQuery] = useState('');

useDebounce(
  () => {
    emitYourOnDebouncedSearchEvent(query);
  },
  2000,
  [query]
);

return <input onChange={({ currentTarget }) => setQuery(currentTarget.value)} />

有关详细信息，请直接检查库的github页面。

https://github.com/streamich/react-use/blob/master/docs/useDebounce.md

我们需要将setter传递给debpublished方法:

以下是StackBlitz的一个例子:

import React from "react";
import debounce from "lodash/debounce";

export default function App() {
  const [state, setState] = React.useState({
    debouncedLog: ""
  });

  const debouncedLog = React.useCallback(
    debounce((setState, log) => {
      setState(prevState => ({
        ...prevState,
        debouncedLog: log
      }));
    }, 500),
    []
  );

  const onChange = React.useCallback(({ target: { value: log } }) => {
    debouncedLog(setState, log); // passing the setState along...
  }, []);
  return (
    <div>
      <input onChange={onChange} style={{ outline: "1px blue solid" }} />

      <pre>Debounced Value: {state.debouncedLog}</pre>
    </div>
  );
}

祝你好运…

您可以使用Lodash debounce https://lodash.com/docs/4.17.5#debounce方法。它简单有效。

import * as lodash from lodash;

const update = (input) => {
    // Update the input here.
    console.log(`Input ${input}`);     
}

const debounceHandleUpdate = lodash.debounce((input) => update(input), 200, {maxWait: 200});

doHandleChange() {
   debounceHandleUpdate(input);
}

您还可以使用下面的方法取消debounce方法。

this.debounceHandleUpdate.cancel();

希望对你有所帮助。干杯! !

/**
 * Returns a function with the same signature of input `callback` (but without an output) that if called, smartly
 * executes the `callback` in a debounced way.<br>
 * There is no `delay` (to execute the `callback`) in the self-delayed tries (try = calling debounced callback). It
 * will defer **only** subsequent tries (that are earlier than a minimum timeout (`delay` ms) after the latest
 * execution). It also **cancels stale tries** (that have been obsoleted because of creation of newer tries during the
 * same timeout).<br>
 * The timeout won't be expanded! So **the subsequent execution won't be deferred more than `delay`**, at all.
 * @param {Function} callback
 * @param {number} [delay=167] Defaults to `167` that is equal to "10 frames at 60 Hz" (`10 * (1000 / 60) ~= 167 ms`)
 * @return {Function}
 */
export function smartDebounce (callback, delay = 167) {
  let minNextExecTime = 0
  let timeoutId

  function debounced (...args) {
    const now = new Date().getTime()
    if (now > minNextExecTime) { // execute immediately
      minNextExecTime = now + delay // there would be at least `delay` ms between ...
      callback.apply(this, args) // ... two consecutive executions
      return
    }
    // schedule the execution:
    clearTimeout(timeoutId) // unset possible previous scheduling
    timeoutId = setTimeout( // set new scheduling
      () => {
        minNextExecTime = now + delay // there would be at least `delay` ms between ...
        callback.apply(this, args) // ... two consecutive executions
      },
      minNextExecTime - now, // 0 <= timeout <= `delay` ... (`minNextExecTime` <= `now` + `delay`)
    )
  }

  debounced.clear = clearTimeout.bind(null, timeoutId)

  return debounced
}

/**
 * Like React's `useCallback`, but will {@link smartDebounce smartly debounce} future executions.
 * @param {Function} callback
 * @param {[]} deps
 * @param {number} [delay=167] - Defaults to `167` that is equal to "10 frames at 60 Hz" (`10 * (1000 / 60) ~= 167 ms`)
 */
export const useDebounced = (callback, deps, delay = 167) =>
  useMemo(() => smartDebounce(callback, delay), [...deps, delay])