javasript --- > 一个日期规范(x秒前,x分前...)

Time函数(通俗易懂,自己根据实际需求修改吧- -)

// time.js
var Time = {
    // 获取当前时间戳
    getUnix: function () {
        var date = new Date();
        return date.getTime();
    },
     
    // 获取今天0点0分0秒的时间戳
    getTodayUnix: function () {
        var date = new Date();
        date.setHours(0);
        date.setMinutes(0);
        date.setSeconds(0);
        date.setMilliseconds(0);
        return date.getTime();
    },
     
    // 获取今年1月1日0点0分0秒的时间戳
    getYearUnix: function () {
        var date = new Date();
        date.setMonth(0);
        date.setDate(1);
        date.setHours(0);
        date.setMinutes(0);
        date.setSeconds(0);
        date.setMilliseconds(0);
        return date.getTime();
    },
     
    // 获取标准年月日
    getLastDate: function(time) {
        var date = new Date(time);
        var month = date.getMonth() + 1 < 10 ? '0' + (date.getMonth() + 1)  : date.getMonth() + 1;
        var day = date.getDate() < 10 ? '0' + date.getDate() : date.getDate();
        return date.getFullYear() + "-" + month + "-" +day;
    },
     
    // 转换时间
    getFormatTime: function(timestamp) {
        var now = this.getUnix();
        var today = this.getTodayUnix();
        var year = this.getYearUnix();
        var timer = (now - timestamp) / 1000;
        var tip = '  '; 
         
        if (timer <= 0) {
            tip = '刚刚';
        } else if (Math.floor(timer/60) <=) {
            tip = '刚刚';
        } else if (timer < 3600) {
            tip = Math.floor(timer/60) + '分种前';
        } else if (timer >= 3600 && (timestamp - today >= 0)) {
            tip = Math.floor(timer/3600) + '小时前';
        } else if (timer/86400 <= 31) {
            tip = Math.ceil(timer/86400) + '天前';
        } else {
            tip = this.getLastDate(timestamp);
        }     
        return tip;
    }
};

使用:

console.log(Time.getFormatTime((new Date()).getTime()));
console.log(Time.getFormatTime(1488930695721))

参考《Vue.js实战》P128