vue--手机端日历插件

最近的一个项目需要写一个日历插件，对一些知识点有了新认识，所以记下方便以后的查阅

 

其中对日期函数有了更深入的了解：

    var date = new Date();
               date .getYear(); //获取当前年份(2位)
               date .getFullYear(); //获取完整的年份(4位,1970-????)
               date .getMonth(); //获取当前月份(0-11,0代表1月)
               date .getDate(); //获取当前日(1-31)
               date .getDay(); //获取当前星期X(0-6,0代表星期天)
               date .getTime(); //获取当前时间(从1970.1.1开始的毫秒数)
               date .getHours(); //获取当前小时数(0-23)
               date .getMinutes(); //获取当前分钟数(0-59)
               date .getSeconds(); //获取当前秒数(0-59)
               date .getMilliseconds(); //获取当前毫秒数(0-999)
               date .toLocaleDateString(); //获取当前日期
               var mytime=date .toLocaleTimeString(); //获取当前时间
                date .toLocaleString( ); //获取日期与时间

   下面的具体的代码：

          

      

          
          
{{item}}
        
      
      

        

          

            
{{item.typesetting}}
              
        
      
    

data() {
    return {
      daynamearr: ["周日", "周一", "周二", "周三", "周四", "周五", "周六"], //本月的本期构成
      dayarr: [],
      arr: [],
    }
}

 

getCalendar(year, month, isClear) {
      if (isClear) {
        this.dayarr = [];
      }
      var themonth1stday = new Date(year, month - 1, 1).getDay(); 
      var y = month == 12 ? year + 1 : year;
      var m = month == 12 ? 1 : month;
      var themonthdaysamount = new Date(new Date(y, m, 1) - 1).getDate();
      var prevmonthlastday = new Date(
        new Date(year, month - 1, 1) - 1
      ).getDate();
      while (themonth1stday-- > 0) {
        this.dayarr.unshift({
          day: prevmonthlastday--,
          prevmonth: true,
          currentmonth: false
        });
      } //本月的日期
      var count = 0;
      while (themonthdaysamount--) {
        this.dayarr.push({
          day: ++count,
          currentmonth: true
        });
      }
      var c = 42 - this.dayarr.length;
      var count2 = 1;
      while (c-- > 0) {
        this.dayarr.push({
          day: count2++,
          nextmonth: true,
          currentmonth: false
        });
      }
      var _arr = [];
      for (var i = 0; i < 6; i++) {
        var _week = [];
        for (var j = 0; j < 7; j++) {
          _week.push(this.dayarr[i * 7 + j]);
        }
        _arr.push(_week);
      }
      
      this.arr = _arr
    },

项目中还有一些其他小功能：计算上班的时间

getWorkTime(time1, time2) {
      let dateDiff = time1 - time2;
      let dayDiff = Math.floor(dateDiff / (24 * 3600 * 1000)); 
      let leave1 = dateDiff % (24 * 3600 * 1000); 
      let hours = Math.floor(leave1 / (3600 * 1000)); 
      let leave2 = leave1 % (3600 * 1000); 
      let minutes = Math.floor(leave2 / (60 * 1000)); 
      let leave3 = leave2 % (60 * 1000); 
      let seconds = Math.round(leave3 / 1000);
      return hours + "小时" + minutes + "分钟";
    },

点击获取日期和星期

 getCurrentWeek(w) {
      let date = new Date();
      if(w == undefined) {
        w =date.getDay();
      }
     switch(w) {
       case 0: {
         this.currentWeek = "星期日";
       } break;
       case 1: {
          this.currentWeek = "星期一";
       } break;
       case 2: {
         this.currentWeek = "星期二";
       } break;
       case 3: {
         this.currentWeek = "星期三";
       } break;
       case 4: {
         this.currentWeek = "星期四";
       } break;
       case 5: {
         this.currentWeek = "星期五";
       } break;
       case 6: {
         this.currentWeek = "星期六";
       } break;
     }
    },