在 JavaScript/Node.js 中将 Youtube Data API V3 视频持续时间格式转换为秒 [英] Converting Youtube Data API V3 video duration format to seconds in JavaScript/Node.js

问题描述

我正在尝试在 JS/Node.js 中将 ISO 8601 字符串转换为秒.我能想到的最好的方法是:

I'm trying to convert ISO 8601 string to seconds in JS/Node. The best I could come up with was:

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
}

当我输入诸如PT48S"、PT3M20S"或PT3H2M31S"之类的字符串时它可以工作，但如果字符串是PT1H11S"，它就会失败.有人有更好的主意吗?

It works when I input strings such as "PT48S", "PT3M20S" or "PT3H2M31S", but fails miserably if the string is "PT1H11S". Does anyone have a better idea?

推荐答案

我建议使用这个小技巧来防止出现问题:

I suggest this little hack to prevent your problematic case:

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

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