小编And*_*ets的帖子

我试图在JS/Node中将ISO 8601字符串转换为秒.我能想到的最好的是:

function convert_time(duration) {
    var a = duration.match(/\d+/g)
    var 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
}

它在输入"PT48S","PT3M20S"或"PT3H2M31S"等字符串时有效,但如果字符串为"PT1H11S"则失败.有没有人有更好的主意？