涨芝士：获取各个时间的操作

清疚 2022-12-02 13:49 150阅读 0赞

1.  获取当前的时间（年-月-日）

getCurrentDay() { 
      var date = new Date()
      var dd = String(date.getDate()).padStart(2, '0')
      var mm = String(date.getMonth() + 1).padStart(2, '0')
      var yyyy = date.getFullYear()
      this.currentDay = yyyy + '-' + mm + '-' + dd
    }

1.  获取明天的时间（年-月-日）

getCurrentNextDay() { 
      var date = new Date()
      var dd = String(date.getDate() + 1).padStart(2, '0')
      var mm = String(date.getMonth() + 1).padStart(2, '0')
      var yyyy = date.getFullYear()
      this.currentNextDay = yyyy + '-' + mm + '-' + dd
    }

1.  获取本月最后一天，下月第一天

getMonthLastDay() { 
      let date = new Date()
      let currentMonth = date.getMonth()
      let nextMonth = ++currentMonth
      let nextMonthDay = new Date(date.getFullYear(), nextMonth, 1)
      this.nextMonthFirstDay = parseTime(new Date(date.getFullYear(), nextMonth, 1), '{y}-{m}-{d}') // 下月第一天
      let oneDay = 1000 * 60 * 60 * 24
      this.currentMonthEndDay = parseTime(new Date(nextMonthDay - oneDay), '{y}-{m}-{d}') // 本月最后一天
    },

以上`parseTime()`方法的使用

export function parseTime(time, cFormat) { 
      if (arguments.length === 0) { 
        return null
      }
      const format = cFormat || '{y}-{m}-{d} {h}:{i}:{s}'
      let date
      if (typeof time === 'object') { 
        date = time
      } else { 
        if ((typeof time === 'string') && (/^[0-9]+$/.test(time))) { 
          time = parseInt(time)
        }
        if ((typeof time === 'number') && (time.toString().length === 10)) { 
          time = time * 1000
        }
        date = new Date(time)
      }
      const formatObj = { 
        y: date.getFullYear(),
        m: date.getMonth() + 1,
        d: date.getDate(),
        h: date.getHours(),
        i: date.getMinutes(),
        s: date.getSeconds(),
        a: date.getDay()
      }
      return format.replace(/{([ymdhisa])+}/g, (result, key) => { 
        const value = formatObj[key]
        // Note: getDay() returns 0 on Sunday
        if (key === 'a') { 
          return ['日', '一', '二', '三', '四', '五', '六'][value]
        }
        return value.toString().padStart(2, '0')
      })
    }