请问下如何用moment将两个时间点的差用HH:mm:ss表示出来

Question

你好，请问下如何用moment将两个时间点的差用HH:mm:ss表示出来，例如7月1日0点0分0秒距离7月3日12点0分0秒是60个小时，应为60:00:00。万分感谢

Answer 1

var a = moment([2017, 7, 1]);

var b = moment([2017, 7, 3, 12]);

var duration = moment.duration(b.diff(a));

var m = {

    hours: `${parseInt(duration.asHours(), 10)}`,

    minutes: `${parseInt(duration.asMinutes()) % 60}`,

    seconds: `${parseInt(duration.asSeconds()) % 60}`,

    toString: function() {

        let m = `00${this.minutes}`.substr(this.minutes.length);

        let s = `00${this.seconds}`.substr(this.seconds.length);

        return `${this.hours}:${m}:${s}`;

    }

};

console.log(m.toString());

补充：再来个简化点的版本

var a = moment([2017, 7, 1]);

var b = moment([2017, 7, 3, 12]);

var duration = moment.duration(b.diff(a));

var s = `${duration.asHours()}:${moment([2000, 1, 1]).add(duration).format("mm:ss")}`;

console.log(s);