vue过滤器--几天前、几周前

function diaplayTime(data) {
        //将字符串转换成时间格式
        let timePublish = new Date(data);
        let timeNow = new Date();
        let minute = 1000 * 60;
        let hour = minute * 60;
        let day = hour * 24;
        let month = day * 30;
        let year = month * 12;
        let diffValue = timeNow - timePublish;
        let diffMonth = diffValue / month;
        let diffWeek = diffValue / (7 * day);
        let diffDay = diffValue / day;
        let diffHour = diffValue / hour;
        let diffMinute = diffValue / minute;
        let diffYear = diffValue / year;
        if (diffValue < minute) {
            result = "刚刚发表";
        } else if (diffYear > 1) {
            result = parseInt(diffYear) + "年前";
        } else if (diffMonth > 1) {
            result = parseInt(diffMonth) + "月前";
        } else if (diffWeek > 1) {
            result = parseInt(diffWeek) + "周前";
        } else if (diffDay > 1) {
            result = parseInt(diffDay) + "天前";
        } else if (diffHour > 1) {
            result = parseInt(diffHour) + "小时前";
        } else if (diffMinute > 1) {
            result = parseInt(diffMinute) + "分钟前";
        } else {
            result = "刚刚发表";
        }
        return result;
    };

使用: {{diaplayTime(item.time)}}

第二种: vue2过滤器

// 过滤器
		filters: {
			timeFilters(data) { //data是接受的item.time
				//将字符串转换成时间格式
				let result;
				let timePublish = new Date(data);
				let timeNow = new Date();
				let minute = 1000 * 60;
				let hour = minute * 60;
				let day = hour * 24;
				let month = day * 30;
				let year = month * 12;
				let diffValue = timeNow - timePublish;
				let diffMonth = diffValue / month;
				let diffWeek = diffValue / (7 * day);
				let diffDay = diffValue / day;
				let diffHour = diffValue / hour;
				let diffMinute = diffValue / minute;
				let diffYear = diffValue / year;
				if (diffValue < minute) {
					result = "刚刚发表";
				} else if (diffYear > 1) {
					result = parseInt(diffYear) + "年前";
				} else if (diffMonth > 1) {
					result = parseInt(diffMonth) + "月前";
				} else if (diffWeek > 1) {
					result = parseInt(diffWeek) + "周前";
				} else if (diffDay > 1) {
					result = parseInt(diffDay) + "天前";
				} else if (diffHour > 1) {
					result = parseInt(diffHour) + "小时前";
				} else if (diffMinute > 1) {
					result = parseInt(diffMinute) + "分钟前";
				} else {
					result = "刚刚发表";
				}
				return result;

			},
		},

如何使用:用管道符 | 写在标签上 例如,  {{ item.time | timeFilters}} filter与method同级
      解释:  (item.time)是循环的每一项时间 | (timeFilters)是过滤器名字,