js常用方法

• 获取格式化时间

function getNowTime(timeType = 'y-m-d') {
      let now = new Date()
      let yy, mm, dd, hh, min, ss;
      yy = now.getFullYear()
      mm = String(now.getMonth() + 1).padStart(2, 0)
      dd = String(now.getDate()).padStart(2, 0)
      hh = String(now.getHours()).padStart(2, 0)
      min = String(now.getMinutes()).padStart(2, 0)
      ss = String(now.getSeconds()).padStart(2, 0)

      switch (timeType) {
        case 'y-m-d':
          return `${yy}-${mm}-${dd}`
          break;
        case 'y-m-d-h-m-s':
          return `${yy}-${mm}-${dd} ${hh}:${min}:${ss}`
          break;

        default:
          break;
      }
    }

• 获取随即姓名

function getName() {
      var familyNames = new Array(
        "赵", "钱", "孙", "李", "周", "吴", "郑", "王", "冯", "陈",
        "褚", "卫", "蒋", "沈", "韩", "杨", "朱", "秦", "尤", "许",
        "何", "吕", "施", "张", "孔", "曹", "严", "华", "金", "魏",
        "陶", "姜", "戚", "谢", "邹", "喻", "柏", "水", "窦", "章",
        "云", "苏", "潘", "葛", "奚", "范", "彭", "郎", "鲁", "韦",
        "昌", "马", "苗", "凤", "花", "方", "俞", "任", "袁", "柳",
        "酆", "鲍", "史", "唐", "费", "廉", "岑", "薛", "雷", "贺",
        "倪", "汤", "滕", "殷", "罗", "毕", "郝", "邬", "安", "常",
        "乐", "于", "时", "傅", "皮", "卞", "齐", "康", "伍", "余",
        "元", "卜", "顾", "孟", "平", "黄", "和", "穆", "萧", "尹"
      );
      var givenNames = new Array(
        "子璇", "淼", "国栋", "夫子", "瑞堂", "甜", "敏", "尚", "国贤", "贺祥", "晨涛",
        "昊轩", "易轩", "益辰", "益帆", "益冉", "瑾春", "瑾昆", "春齐", "杨", "文昊",
        "东东", "雄霖", "浩晨", "熙涵", "溶溶", "冰枫", "欣欣", "宜豪", "欣慧", "建政",
        "美欣", "淑慧", "文轩", "文杰", "欣源", "忠林", "榕润", "欣汝", "慧嘉", "新建",
        "建林", "亦菲", "林", "冰洁", "佳欣", "涵涵", "禹辰", "淳美", "泽惠", "伟洋",
        "涵越", "润丽", "翔", "淑华", "晶莹", "凌晶", "苒溪", "雨涵", "嘉怡", "佳毅",
        "子辰", "佳琪", "紫轩", "瑞辰", "昕蕊", "萌", "明远", "欣宜", "泽远", "欣怡",
        "佳怡", "佳惠", "晨茜", "晨璐", "运昊", "汝鑫", "淑君", "晶滢", "润莎", "榕汕",
        "佳钰", "佳玉", "晓庆", "一鸣", "语晨", "添池", "添昊", "雨泽", "雅晗", "雅涵",
        "清妍", "诗悦", "嘉乐", "晨涵", "天赫", "玥傲", "佳昊", "天昊", "萌萌", "若萌"
      );
      var i = parseInt(10 * Math.random()) * 10 + parseInt(10 * Math.random());
      var familyName = familyNames[i];

      var j = parseInt(10 * Math.random()) * 10 + parseInt(10 * Math.random());
      var givenName = givenNames[i];

      var name = familyName + givenName;
      return name
    }

• 随即电话

function getTel() {
      let telHead = ["130", "131", "132", "133", "135", "137", "138", "170", "187", "189", "176", "171"]
      let i = parseInt(Math.random() * 10)
      let tel = telHead[i]
      for (let j = 0; j < 8; j++) {
        tel = tel + Math.floor(Math.random() * 10)
      }
      return tel
    }

• 获取滚动条距顶部高度

export function getPageScrollTop() {
    let a = document;
    return a.documentElement.scrollTop || a.body.scrollTop;
}

• 开启全屏

export function launchFullscreen(element) {
       if (element.requestFullscreen) {
           element.requestFullscreen()
       } else if (element.mozRequestFullScreen) {
           element.mozRequestFullScreen()
       } else if (element.msRequestFullscreen) {
           element.msRequestFullscreen()
   } else if (element.webkitRequestFullscreen) {
        element.webkitRequestFullScreen()
    }
    }

• 关闭全屏

export function exitFullscreen() {
    if (document.exitFullscreen) {
        document.exitFullscreen()
    } else if (document.msExitFullscreen) {
        document.msExitFullscreen()
    } else if (document.mozCancelFullScreen) {
        document.mozCancelFullScreen()
    } else if (document.webkitExitFullscreen) {
        document.webkitExitFullscreen()
    }
}

• 滚动到指定元素区域

export const smoothScroll = element =>{
    document.querySelector(element).scrollIntoView({
        behavior: 'smooth'
    });
};

• 平滑滚动到页面顶部

export const scrollToTop = () => {
    const c = document.documentElement.scrollTop || document.body.scrollTop;
    if (c > 0) {
        window.requestAnimationFrame(scrollToTop);
        window.scrollTo(0, c - c / 8);
    }
};

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