js版本

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// 判读是否为空
const isEmpty = function (value) {
  if (value === null || value === "" || value === undefined) {
    return true
  } else if (Array.isArray(value)) {
    return value.length === 0
  } else if (typeof value === "object") {
    return Object.keys(value).length === 0
  }
  return false
}

const formatDate = function (date, fmt) {
  if (isEmpty(date)) {
    return ""
  }

  fmt = fmt || "yyyy-MM-dd HH:mm:ss"
  date = new Date(date.replace(/-/gi, "/"))

  const obj = {
    y: date.getFullYear(), // 年份，注意必须用getFullYear
    M: date.getMonth() + 1, // 月份，注意是从0-11
    d: date.getDate(), // 日期
    q: Math.floor((date.getMonth() + 3) / 3), // 季度
    w: date.getDay(), // 星期，注意是0-6
    H: date.getHours(), // 24小时制
    h: date.getHours() % 12 == 0 ? 12 : date.getHours() % 12, // 12小时制
    m: date.getMinutes(), // 分钟
    s: date.getSeconds(), // 秒
    S: date.getMilliseconds() // 毫秒
  }

  const week = ["天", "一", "二", "三", "四", "五", "六"]
  const objKeys = ["y", "M", "d", "q", "w", "H", "h", "m", "s", "S"]

  for (let i = 0; i < objKeys.length; i++) {
    let key = objKeys[i]
    fmt = fmt.replace(new RegExp(key + "+", "g"), function (m) {
      let val = obj[key] + ""
      if (key == "w") return (m.length > 2 ? "星期" : "周") + week[val]
      let len = val.length
      for (let j = 0; j < m.length - len; j++) val = "0" + val
      return m.length == 1 ? val : val.substring(val.length - m.length)
    })
  }
  return fmt
}

module.exports = {
  formatDate
}

使用

  • 导入
    import { formatDate } from '../../utils/formatDate.js';
  • 使用
    1
    const formateAppointmentTime = formatDate(appointmentTime, 'MM月dd日 HH:mm')

wxs版本

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var formatDate = function (date, fmt) {
  date = date || "";
  date = getDate(date.toString().replace(getRegExp("-", "g"), "/"));
  date = date === undefined ? getDate() : date;
  date = typeof date == "number" ? getDate(date) : date;
  fmt = fmt || "yyyy-MM-dd HH:mm:ss";

  var obj = {
    y: date.getFullYear(), // 年份，注意必须用getFullYear
    M: date.getMonth() + 1, // 月份，注意是从0-11
    d: date.getDate(), // 日期
    q: Math.floor((date.getMonth() + 3) / 3), // 季度
    w: date.getDay(), // 星期，注意是0-6
    H: date.getHours(), // 24小时制
    h: date.getHours() % 12 == 0 ? 12 : date.getHours() % 12, // 12小时制
    m: date.getMinutes(), // 分钟
    s: date.getSeconds(), // 秒
    S: date.getMilliseconds() // 毫秒
  };

  var week = ["天", "一", "二", "三", "四", "五", "六"];
  var objKeys = ['y', "M", "d", "q", "w", "H", "h", "m", "s", "S"];

  for (var i = 0; i < objKeys.length; i++) {
    var key = objKeys[i];
    fmt = fmt.replace(getRegExp(key + "+", "g"), function (m) {
      var val = obj[key] + "";
      if (key == "w") return (m.length > 2 ? "星期" : "周") + week[val];
      var len = val.length;
      for (var j = 0; j < m.length - len; j++)
        val = "0" + val;
      return m.length == 1 ? val : val.substring(val.length - m.length);
    });
  }
  return fmt;
}

module.exports = formatDate;
  • 导入
    1
    <wxs  src="../../wxs/formatDate/formatDate.wxs"  module="formatDate"  />
  • 使用
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    <view  
        class="travel-info-item"
    >
        上车时间: {{formatDate('2019-09-22', 'yyyy年MM月dd日 HH:mm')}}
    </view>