js获取年，周。js进行换行处理

// 获取当前周
    getWeek() {
      var d1 = new Date()
      var d2 = new Date()
      d2.setMonth(0)
      d2.setDate(1)
      var rq = d1 - d2
      var s1 = Math.ceil(rq / (24 * 60 * 60 * 1000))
      var s2 = Math.ceil(s1 / 7)
      return d2.getFullYear().toString() + (s2 + 1).toString()
    },

// 获取年份
    getTimeArr() {
      const start = 2020
      var myDate = new Date()
      // var startYear = myDate.getFullYear() - 50 //起始年份
      // var endYear = myDate.getFullYear() + 50 //结束年份
      var startYear = myDate.getFullYear()
      var endYear = myDate.getFullYear()+(startYear-start)
      var timeArr = []
      for (var i = startYear; i <= endYear; i++) {
        timeArr.push(i)
      }
      return timeArr
    },

// 处理换行
    getEnter(txt) {
      // var txt = '恭喜你\n获得某某某奖品'
      if (txt.indexOf('\n') != -1) {
        var reg = new RegExp('/r/n', 'g')
        txt = txt.replace(reg, '
')
        console.log(txt)
        return txt
      }
    },

换行参考地址