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React 如何使用時間戳計算得到開始和結(jié)束時間戳

更新時間：2023年09月22日 15:35:13 作者：zhoupenghui168

這篇文章主要介紹了React 如何拿時間戳計算得到開始和結(jié)束時間戳,本文通過示例代碼給大家介紹的非常詳細,對大家的學習或工作具有一定的參考借鑒價值,需要的朋友可以參考下

獲取需要的時間戳(開始 and 結(jié)束時間戳) 調(diào)用如下方法就行：

function getWantTimestamp(props) {
  //當前時間
  const nowDate = parseInt((new Date().getTime() / 1000).toString()); //當前時間
  switch (props) {
    // 當前時間時間戳
    case "nowData": {
      return nowDate;
    }
    // 當前零點得時間戳
    case "nowZero": {
      let nowZero = nowDate - (nowDate % 86400) - 3600 * 8;
      return nowZero;
    }
    // 過去24小時的時間戳
    case "formerlyDay": {
      let formerlyDay = nowDate - 86400;
      return formerlyDay;
    }
    // 昨天的零點的時間戳
    case "yesterdayZero": {
      let yesterdayZero = nowDate - (nowDate % 86400) - 3600 * 8 - 3600 * 24;
      return yesterdayZero;
    }
    // 本周星期一零點的時間戳
    case "thisMondayZero": {
      let nowThisWeek = new Date().getDay(); //獲取當前周
      let a = nowDate - (nowThisWeek - 1) * 86400; //得到當前時間到這周
      let thisMondayZero = a - (a % 86400) - 3600 * 8;
      return thisMondayZero;
    }
    // 上周星期一零點的時間戳
    case "lastMondayZero": {
      let nowThisWeek = new Date().getDay(); //獲取當前周
      let a = nowDate - (nowThisWeek - 1) * 86400; //得到當前時間到這周
      let thisMondayZero = a - (a % 86400) - 3600 * 8;
      let lastMondayZero = thisMondayZero - 86400 * 7;
      return lastMondayZero;
    }
    // 過去7天的時間戳
    case "formerlySevenDay": {
      let formerlySevenDay = nowDate - 86400 * 7;
      return formerlySevenDay;
    }
    // 本月開始第一天零點的時間戳
    case "thisMonthBeginZero": {
      let MonthDate: any = new Date();
      MonthDate.setDate(1); //set設(shè)置時間
      MonthDate.setHours(0);
      MonthDate.setSeconds(0);
      MonthDate.setMinutes(0);
      let thisMonthBeginZero = parseInt((MonthDate / 1000).toString());
      return thisMonthBeginZero;
    }
    // 過去30天的時間戳
    case "formerlyThirtyDays": {
      let formerlyThirtyDays = nowDate - 86400 * 30;
      return formerlyThirtyDays;
    }
    // 上個月的零點的時間戳
    case "lastMonthDayZero": {
      let nowMonthDate: any = new Date();
      let getMonth = nowMonthDate.getMonth() + 1;
      nowMonthDate.setMonth(getMonth - 2);
      nowMonthDate.setDate(1); //set設(shè)置時間
      nowMonthDate.setHours(0);
      nowMonthDate.setSeconds(0);
      nowMonthDate.setMinutes(0);
      let lastMonthDayZero = parseInt((nowMonthDate / 1000).toString());
      return lastMonthDayZero;
    }
    // 今年開始第一天零點的時間戳
    case "thisYearDayZero": {
      let yearDate: any = new Date();
      yearDate.setMonth(0);
      yearDate.setDate(1); //set設(shè)置時間
      yearDate.setHours(0);
      yearDate.setSeconds(0);
      yearDate.setMinutes(0);
      let thisYearDayZero = parseInt((yearDate / 1000).toString());
      return thisYearDayZero;
    }
    // 過去12個月的時間戳
    case "formerlyTwelveYearZero": {
      let now12Date: any = new Date();
      let getYear12 = now12Date.getFullYear();
      now12Date.setYear(getYear12 - 1);
      let formerlyTwelveYearZero = parseInt((now12Date / 1000).toString());
      return formerlyTwelveYearZero;
    }
    // 去年開始第一天的時間戳
    case "lastYearDayZero": {
      let nowYearDate: any = new Date();
      let getYear = nowYearDate.getFullYear();
      nowYearDate.setYear(getYear - 1);
      nowYearDate.setMonth(0);
      nowYearDate.setDate(1); //set設(shè)置時間
      nowYearDate.setHours(0);
      nowYearDate.setSeconds(0);
      nowYearDate.setMinutes(0);
      let lastYearDayZero = parseInt((nowYearDate / 1000).toString());
      return lastYearDayZero;
    }
    default: {
      console.log("時間參數(shù)錯誤");
      return 0;
    }
  }
}

調(diào)用getWantTimestamp()方法就能得到需要的時間戳：

getWantTimestamp("nowData")//nowData是switch的判斷的參數(shù)

計算當前時間到今晚23:59:59的時間戳：

//當前23:59:59秒時間戳
let today = new Date(new Date().toLocaleDateString()).getTime() + 24*60*60*1000-1
//當前時間戳
let nowDate = parseInt((new Date().getTime()).toString());
//當前時間距離23:59:59秒的時間戳差值
console.log((today - nowDate) / 1000));

動態(tài)獲取當前年月日時分秒：

import React, { useState, useEffect } from 'react';
function CurrentDateTime() {
  const [currentDateTime, setCurrentDateTime] = useState(new Date());
  useEffect(() => {
    const interval = setInterval(() => {
      setCurrentDateTime(new Date());
    }, 1000); // 每秒更新一次
    return () => {
      clearInterval(interval);
    };
  }, []);
  const year = currentDateTime.getFullYear();
  const month = currentDateTime.getMonth() + 1; // 月份從 0 開始，因此需要加 1
  const date = currentDateTime.getDate();
  const hours = currentDateTime.getHours();
  const minutes = currentDateTime.getMinutes();
  const seconds = currentDateTime.getSeconds();
  return (
    <div>
      <p>當前年月日: {year}-{month < 10 ? `0${month}` : month}-{date}</p>
      <p>當前時分秒: {hours}:{minutes < 10 ? `0${minutes}` : minutes}:{seconds < 10 ? `0${seconds}` : seconds}</p>
    </div>
  );
}
export default CurrentDateTime;

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