在JavaScript / Node.js中将Youtube Data API V3视频时长格式转换为秒

我建议您使用此小技巧来防止出现问题的情况：

function convert_time(duration) {    var a = duration.match(/d+/g);    if (duration.indexOf('M') >= 0 && duration.indexOf('H') == -1 && duration.indexOf('S') == -1) {        a = [0, a[0], 0];    }    if (duration.indexOf('H') >= 0 && duration.indexOf('M') == -1) {        a = [a[0], 0, a[1]];    }    if (duration.indexOf('H') >= 0 && duration.indexOf('M') == -1 && duration.indexOf('S') == -1) {        a = [a[0], 0, 0];    }    duration = 0;    if (a.length == 3) {        duration = duration + parseInt(a[0]) * 3600;        duration = duration + parseInt(a[1]) * 60;        duration = duration + parseInt(a[2]);    }    if (a.length == 2) {        duration = duration + parseInt(a[0]) * 60;        duration = duration + parseInt(a[1]);    }    if (a.length == 1) {        duration = duration + parseInt(a[0]);    }    return duration}

小提琴