Vue 按照创建时间和当前时间显示操作(刚刚,几小时前,几天前)

Z时代
2024-01-10
分类：IT

在methods中创建方法showtime，传入要跟当前时间要对比的时间


  showtime(time) {
   let date =
    typeof time === "number"
     ? new Date(time)
     : new Date((time || "").replace(/-/g, "/"));
   let diff = (new Date().getTime() - date.getTime()) / 1000;
   let dayDiff = Math.floor(diff / 86400);
   let isValidDate =
    Object.prototype.toString.call(date) === "[object Date]" &&
    !isNaN(date.getTime());
   if (!isValidDate) {
    window.console.error("不是有效日期格式");
   }
   const formatDate = function(date) {
    let today = new Date(date);
    let year = today.getFullYear();
    let month = ("0" + (today.getMonth() + 1)).slice(-2);
    let day = ("0" + today.getDate()).slice(-2);
    let hour = today.getHours();
    let minute = today.getMinutes();
    let second = today.getSeconds();
    return `${year}-${month}-${day} ${hour}:${minute}:${second}`;
   };
   if (isNaN(dayDiff) || dayDiff < 0 || dayDiff >= 31) {
    return formatDate(date);
   }
   return (
    (dayDiff === 0 &&
     ((diff < 60 && "刚刚") ||
      (diff < 120 && "1分钟前") ||
      (diff < 3600 && Math.floor(diff / 60) + "分钟前") ||
      (diff < 7200 && "1小时前") ||
      (diff < 86400 && Math.floor(diff / 3600) + "小时前"))) ||
    (dayDiff === 1 && "昨天") ||
    (dayDiff < 7 && dayDiff + "天前") ||
    (dayDiff < 31 && Math.ceil(dayDiff / 7) + "周前")
   );
  },

补充知识：Vue中根据时间戳计算时间间隔-年龄

实现目标

由于数据库没有直接存储用户的年龄，只有以时间戳为格式的出生日期，所以不得不在前端做一下计算处理。下面就和大家一起来看一下前端JS的实现方法。

功能代码

由于时间戳是包含了具体时间的，所以在转日期后截取年月日部分即可。

再获取当前的时期计算间隔得出用户的年龄。


  // 获取用户年龄
   this.userAge = this.toAge(timeStamp);
   console.log(this.userAge);
  // 根据返回的日期计算间隔
       toAge(timeStamp) {
        let birthDate = this.toDate(timeStamp).substr(0, 4);
        let newDate = new Date().getFullYear();
        return (newDate - parseInt(birthDate));
      }
      // 时间戳转日期
      toDate(number) {
        let n = number;
        let date = new Date(n);
        let Y = date.getFullYear() + '/';
        let M = (date.getMonth() + 1 < 10 ? '0' + (date.getMonth() + 1) : date.getMonth() + 1) + '/';
        let D = date.getDate() < 10 ? '0' + date.getDate() : date.getDate();
        return (Y + M + D)
      }