js将时间戳转为时间日期格式-蒲公英云

js将时间戳转为时间日期格式

小咪咪 2021-09-08 23:38 650阅读 0赞

封装方法

getBeforeDate(num, time) {
            let n = num;
            let d = '';
         if(time) {
            d = new Date(time);
         } else {
            d = new Date();
        }
           let year = d.getFullYear();
           let mon = d.getMonth() + 1;
           let day = d.getDate();
        if(day <= n) {
           if(mon > 1) {
           mon = mon - 1;
       } else {
         year = year - 1;
         mon = 12;
    }
  }
  d.setDate(d.getDate() - n);
  year = d.getFullYear();
  mon = d.getMonth() + 1;
  day = d.getDate();
  let s = year + "-" + (mon < 10 ? ('0' + mon) : mon) + "-" + (day < 10 ? ('0' + day) : day);
  return s;
},

调用方式

<el-form ref="form" :model="form" :rules="rules" label-width="80px">
                <el-form-item label="推广时间" prop="time">
                  <el-date-picker v-model="form.time " type="daterange" range-separator="-" start-placeholder="开始日期" end-placeholder="结束日期">
                  </el-date-picker>
                </el-form-item>
      form: {
        time: [],
      },
      rules: {
        time: [{ required: true, message: '请选择推广时间', trigger: 'change' }],
      },
this.timestart = this.form.time[0].getTime();  //当前选择的时间选择 初始时间
      console.log(this.timestart);
      let strtimeStart = this.getBeforeDate(0, this.timestart) +" 00:00:00";  //转为时间宣选择
      console.log(strtimeStart)
      this.timestend =this.form.time[1].getTime()  //当前选择的时间选择 结束时间
       let strtimeEnd = this.getBeforeDate(0, this.timestart) +" 00:00:00";  //转为时间宣选择
      onsole.log(strtimeEnd)