核心逻辑 ——useCountdownhook 组件: exportconstuseCountdown= (options: CountDownOptions) => {// 首次初始化数据,显示清除的数据const[timeInfo, setTimeInfo] = useState<TimeInfo>(clearCountdownInfo(options.showMillisecond) );useEffect(() =>{lettimer =0;functioncountdown() {constremainTime =compu...
Dynamically update the title of a webpage with useDocumentTitle. useIsFirstRender Differentiate between the first and subsequent renders with useIsFirstRender. useLongPress Enable precise control of long-press interactions for both touch and mouse events with useLongPress. ...
useCountdown React Hook useCountdownis a custom React hook designed to create countdown timers based on a specified date. Installation You can install react-countdown-component-hooks using npm or yarn: Install dev dependencies npm i react-countdown-component-hooks#oryarn add react-countdown-compo...
最终,用户可以按照如下的方式,使用我们封装的 useCountDown importReactfrom'react'// 1. 导入自定义的 hookimport{useCountDown}from'@/hooks/index.ts'exportconstCountDown:React.FC=()=>{// 2. 调用自定义的 hookconst[count,disabled]=useCountDown(3)return(<><!--3.展示倒计时的秒数,并控制按钮的...
$ npm install --save react-native-use-countdown Using yarn: $ yarn add react-native-use-countdown Usage Import the useCountdown hook: import{useCountdown}from"use-countdown-hook"; Use the useCountdown hook in your component, passing the initial time in seconds: ...
$ npm install --save react-countdown-hook Using yarn: $ yarn add react-countdown-hook Quick Start importReactfrom'react';importuseCountDownfrom'react-countdown-hook';constinitialTime=60*1000;// initial time in milliseconds, defaults to 60000constinterval=1000;// interval to change remaining ti...
const [count, setCount]= useState(60) 设置一个button按钮给点击事件,按下后状态变为disabled,开始定时器每秒减一,当时间为0时,清除定时器,重置会原来的状态。 实现的逻辑并不复杂 首先我将时间的这部分抽离出来,写成自定义hook。一开始我在函数最外部定义来存储定时器,但后来发现如果同时调用两个后,定时器是...
可以看到useTimer中对于倒计时的逻辑全都内敛到了一块,当然,具体倒计时的实现逻辑是可以抽出来的,就像class组件的countDown一样,更为关键的地方在于这个Hook和视图是没有绑定的,在任何需要倒计时的场景下都可以复用。 代码语言:javascript 复制 constTimer=(timeStamp)=>{const{days,hours}=useTimer(timeStamp);retu...
import { useEffect, useRef, useState } from 'react' export default function useCountDown (initCount = 10, callBack) { // 存入到useRef中 const refTimer = useRef() /* 用户可以定义: 1.倒计时的时间 2.倒计时结束的动作 3.何时开始倒计时 */ // 1. 初始化倒计时的时间 const [count, setCou...
$ yarn add react-native-use-countdown Usage Import the useCountdown hook: import { useCountdown } from "use-countdown-hook"; Use the useCountdown hook in your component, passing the initial time in seconds: const INITIAL_TIME = 60; const { countdown, isCountdownActive, formattedTime, ...