在methods中创建方法showtime,传入要跟当前时间要对比的时间
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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" )
);
},
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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。
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// 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)
}
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内容小结
又是一个小功能的实现,一边记录下自己的代码,一边和大家分享平时代码的点滴,希望能给大家一个参考,也希望大家多多支持服务器之家。
原文链接:https://blog.csdn.net/z772330927/article/details/106229374