util-tool工具 、时间格式化

js 日期格式： UTC GMT 互相转换

//UTC 转指定格式日期
let date = '2018-03-07T16:00:00.000Z'
console.log(moment(date).format('YYYY-MM-DD HH:mm:ss'))


//GMT
let localTime = moment.utc(date).toDate();
console.log(localTime)



//本地日期转UTC
console.log(new Date("2018-03-08 00:00:00").toISOString())

/** 
*
*  @description: 格式化日期
*  @Date: 2019/10/16 09:32
*
*/ 

Date.prototype.format = function(format) {
    var o = {
        "M+": this.getMonth() + 1, //月份
        "d+": this.getDate(), //日
        "H+": this.getHours(), //小时
        "m+": this.getMinutes(), //分
        "s+": this.getSeconds(), //秒
        "q+": Math.floor((this.getMonth() + 3) / 3), //季度
        "f+": this.getMilliseconds() //毫秒
    };
    if (/(y+)/.test(format))
        format = format.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length));
    for (var k in o)
        if (new RegExp("(" + k + ")").test(format))
            format = format.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));
    return format;
}

export default Date.prototype.format


然后我们使用其格式日期
require(Date);
// const now = new Date().format("yyyy/MM/dd HH:mm:ss.S");
const now = new Date().format("yyyy/MM/dd HH:mm:ss");

2、遍历对象及数组

/**
 * each 遍历数组及对象
 * @param obj {Object|Array} 遍历对象
 * @param callback {Function} 回调函数，第一个参数为val，第二个为key，这里与jquery相反
 */
each(obj: Array < any > , callback: Function) : Array < any > {
  let length: number,
  i: number | string = 0;

  if (isArrayLike(obj)) {
    length = obj.length;
    for (; i < length; i++) {
      if (callback.call(obj[i], obj[i], i) === false) {
        break;
      }
    }
  } else {
    for (i in obj) {
      if (callback.call(obj[i], obj[i], i) === false) {
        break;
      }
    }
  }

  return obj;
}

使用示例：（tks是文件名称）

tks.each({ aa: 1, bb: 2, cc: 3 },(v, i) = >{
  console.log(v, i);
})
tks.each([1, 3, 5, 7, 9], (v, i) = >{
  console.log(v, i);
})

3、格式校验：

let myTool = {
  // 手机号验证
  checkPhone(str) {
    return /^1[0-9]{10}$/.test(str)
  },
  // 电话验证
  tel(str) {
    return /^(0d{2,3}-d{7,8})(-d{1,4})?$/.test(str)
  },
  // 首尾空格去除
  trim(str) {
    return str.replace(/(^s*)|(s*$)/g, '')
  },
  // 替换所有空格
  trimAll(str) {
    return str.replace(/s+/g, '');
  },
  // 获取url参数
  getQueryString(name) {
    let url = location.href.split('?')[1]
    let theRequest = {}
    if (url) {
      let strs = url.split('&')
      for (var i = 0; i < strs.length; i++) {
        theRequest[strs[i].split('=')[0]] = decodeURIComponent(strs[i].split('=')[1])
      }
    }
    return theRequest[name]
  },
  // 设置cookie
  setCookie(name, value, iDay) {
    var oDate = new Date()
    oDate.setDate(oDate.getDate() + iDay)
    document.cookie = name + '=' + value + ';expires=' + oDate + '; path=/'
  },
  // 获取cookie
  getCookie(name) {
    var arr = document.cookie.split('; ')
    for (var i = 0; i < arr.length; i++) {
      var arr2 = arr[i].split('=')
      if (arr2[0] === name) {
        return arr2[1]
      }
    }
    return ''
  },
  // 删除cookie
  removeCookie(name) {
    this.setCookie(name, '', -1)
  },
  // 设置本地存储
  setItem(name, value) {
    localStorage.setItem(key, JSON.stringify({
      val: value,
      time: new Date().getTime()
    }))
  },
  // 获取本地存储
  getItem(key, day) {
    let text = ''
    let val = localStorage.getItem(key)
    if (val) {
      let item = JSON.parse(val)
      if (!item.time || (new Date().getTime() - item.time > day * 24 * 60 * 60 * 1e3)) {
        localStorage.removeItem(key)
      } else {
        text = item.val
      }
    }
    return text
  },
  // 获取文本长度
  getStringLen: function (str) {
    var len = 0;
    for (var i = 0; i < str.length; i++) {
      str.charCodeAt(i) > 255 ? len += 2 : len += 1;
    }
    return len;
  },
  // 判断微信浏览器
  isWeiXin: /micromessenger/i.test(navigator.userAgent.toLowerCase()),
  isIos: /iphone|ipad/i.test(navigator.userAgent.toLowerCase()),
  isAndroid: /android/i.test(navigator.userAgent.toLowerCase()),
  // 判断数据类型
  isType(obj, type) {
    // obj instanceof Array
    // obj.constructor === Array
    // Array.isArray(obj)
    // undefined function boolean number string array object
    return Object.prototype.toString.call(obj).slice(8, -1).toLowerCase() === type
  },
  // 深拷贝对象
  clone(obj) {
    if ("object" != typeof obj) return obj
    var copy = obj instanceof Array ? [] : {}
    for (var attr in obj) {
      copy[attr] = clone(obj[attr])
    }
    return copy
  },
  // 时间戳转时间
  timeFormat(val, type) {
    let time = ''
    if (val) {
      let date = new Date(val * 1000)
      let year = date.getFullYear()
      let month = date.getMonth() + 1 < 10 ? '0' + (date.getMonth() + 1) : date.getMonth() + 1
      let day = date.getDate() < 10 ? '0' + date.getDate() : date.getDate()
      let h = date.getHours() < 10 ? '0' + date.getHours() : date.getHours()
      let m = date.getMinutes() < 10 ? '0' + date.getMinutes() : date.getMinutes()
      let s = date.getSeconds() < 10 ? '0' + date.getSeconds() : date.getSeconds()

      if (type === 'second') {
        // 2018.11.12 00:00
        time = `${year}.${month}.${day} ${h}:${m}`
      } else if (type === 'time') {
        // 12月11日00:00
        time = `${month}月${day}日${h}:${m}`
      } else if (type === 'month') {
        // 12月11日
        time = `${month}月${day}日`
      }
    }
    return time
  },
  // 数组里最大的数字
  max(arr) {
    // 方法1
    return Math.max(...arr)
    // 方法2
    return Math.max.apply(Math, arr)
  },
  // 设置html的font-size
  setFontSize(_client) {
    // _client 设计稿的宽度
    let docEl = document.documentElement,
      resizeEvt = 'orientationchange' in window ? 'orientationchange' : 'resize',
      countSize = function () {
        // 方法1
        let devieWidth = Math.min(_client, docEl.clientWidth, docEl.clientHeight)
        let fonSize = devieWidth > 1080 ? 144 : devieWidth / _client * 100
        docEl.style.fontSize = fonSize + 'px'

        // 方法2 根据vw ios兼容最低7 android兼容最低4.4
        docEl.style.fontSize = 100 / _client * 100 + 'vw'
      };
    window.addEventListener(resizeEvt, countSize, false)
    countSize()
  },
  // 查找类名 html5属性classList
  hasClass(obj, className) {
    // let obj = document.querySelectorAll(obj)
    return obj.classList.contains(className)
  },
  // 添加类名
  addClass(obj, className) {
    obj.classList.add(className)
    return this
  },
  // 删除类名
  removeClass(obj, className) {
    obj.classList.remove(className)
    return this
  },
  // 动画
  animate(obj, josn, fn) {
    function css(obj, attr) {
      if (obj.currentStyle) {
        return obj.currentStyle[attr]
      }
      return getComputedStyle(obj, false)[attr]
    }
    clearInterval(obj.iTimer)
    var iSpeed = 0
    var iCur = 0
    obj.iTimer = setInterval(function () {
      var iEnd = true
      for (var attr in json) {
        iCur = parseInt(css(obj, attr))
        iSpeed = (json[attr] - iCur) / 8
        iSpeed = iSpeed > 0 ? Math.ceil(iSpeed) : Math.floor(iSpeed)

        if (iCur !== json[attr]) {
          iEnd = false;
          obj.style[attr] = iSpeed + iCur + 'px';
        }
        if (iEnd) {
          clearInterval(obj.iTimer);
          fn && fn.call(obj);
        }
      }
    }, 30);
  },
  // 拖拽移动
  drag(block) {
    var oW
    var oH
    var maxWidth = document.documentElement.clientWidth - block.offsetWidth
    var maxHeight = document.documentElement.clientHeight - block.offsetHeight
    block.addEventListener('touchstart', function (e) {
      var touches = e.touches[0]
      oW = touches.clientX - block.offsetLeft
      oH = touches.clientY - block.offsetTop
      document.addEventListener('touchmove', defaultEvent, false)
    }, false)

    block.addEventListener('touchmove', function (e) {
      var touches = e.touches[0]
      var oLeft = touches.clientX - oW
      var oTop = touches.clientY - oH
      oLeft = oLeft < 0 ? 0 : oLeft
      oLeft = oLeft > maxWidth ? maxWidth : oLeft
      oTop = oTop < 0 ? 0 : oTop
      oTop = oTop > maxHeight ? maxHeight : oTop
      block.style.left = oLeft + 'px'
      block.style.top = oTop + 'px'
      e.preventDefault()
    }, false)

    block.addEventListener('touchend', function () {
      document.removeEventListener('touchmove', defaultEvent, false)
    }, false)
  },
  // ajax封装
  ajax(opt) {
    /*
      opt：参数
      method: 请求方式
      url： 请求url
      data: 请求参数
      callback：请求成功回调
      async: 请求异步同步，默认异步
    */
    let oAjax = null
    let j = {}
    if (window.XMLHttpRequest) {
      oAjax = new XMLHttpRequest();
    } else {
      oAjax = new ActiveXObject('Microsoft.XMLHTTP')
    }

    j.method = opt.method || 'get'
    j.url = opt.url || ''
    j.data = opt.data || ''
    j.callback = opt.callback || function () { }

    if (j.method == 'get' && j.data) {
      let data_send = '?'
      Object.keys(j.data).forEach(key => {
        data_send += `${key}=${j.data[key]}`
      })
      j.url += data_send.slice(0, -1)
    }

    oAjax.open(j.method, j.url, opt.async || true)

    if (j.method == 'get') {
      oAjax.send()
    } else {
      let data = j.data
      let header = 'application/x-www-form-urlencoded'
      if (typeof j.data !== 'string') {
        header = 'application/json'
        data = JSON.stringify(data)
      }
      xhr.setRequestHeader('Content-type', header)
      xhr.send(data)
    }

    oAjax.onreadystatechange = function () {
      if (oAjax.readyState == 4) {
        if (oAjax.status == 200) {
          j.callback(oAjax.responseText)
        }
      }
    }
  }
}