在像评论列表这样的前端页面中，经常会出现时间的字段，如果显示一个标准的yyyy-MM-dd HH:mm:ss这样的时间格式，显然不是很友好，通常产品会要求显示 [1分钟前]、[刚刚] 类似的文字，那么怎么用js实现呢？我这里封装了一个通用的函数以实现，贴出完整代码：

//时间格式化function getDateDiff(date){    if(typeof date === 'string'){        date = new Date(Date.parse(date.replace(/-/g, "/")));    }else if(typeof date === 'object'){        date = date.getTime();    }    var result = '',        differentValue = new Date().getTime() - date;    if(differentValue < 0) {        return '穿越时空'    }    var minute = 1000 * 60,        hour = minute * 60,        day = hour * 24,        week = day * 7,        month = day * 30,//且都用30天算        year = month * 12;    if(differentValue / year >= 1){        result = parseInt(differentValue / year) + "年前"    }else if(differentValue / month >= 1){        result = parseInt(differentValue / month) + "月前"    }else if(differentValue / week >= 1){        result = parseInt(differentValue / week) + "周前"    }else if(differentValue / day >= 1){        result = parseInt(differentValue / day) + "天前"    }else if(differentValue / hour >= 1){        result = parseInt(differentValue / hour) + "小时前"    }else if(differentValue / minute >= 1){        result = parseInt(differentValue / minute) + "分钟前"    }else{        result = "刚刚";      }    return result;}console.log(getDateDiff('2017-06-21 20:16:24'))console.log(getDateDiff(parseInt('1497183384000')))console.log(getDateDiff(1497183384000))console.log(getDateDiff(new Date('2011-01-11 20:16:24')))console.log(getDateDiff(new Date('2017-07-14 11:43:24')))console.log(getDateDiff(new Date('2017-07-14 20:16:24')))

控制台输出如图