Converting Youtube Data API V3 video duration format to seconds in JavaScript/Node.js

Question

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         


        

Answer 1

Assuming the input is valid, we can use the regex exec method to iterate on the string and extract the group sequentially:

const YOUTUBE_TIME_RE = /(\d+)([HMS])/g;
const YOUTUBE_TIME_UNITS = {
    'H': 3600,
    'M': 60,
    'S': 1
}

/**
 * Returns the # of seconds in a youtube time string
 */
function parseYoutubeDate(date: string): number {
    let ret = 0;
    let match: RegExpExecArray;
    while (match = YOUTUBE_TIME_RE.exec(date)) {
        ret += (YOUTUBE_TIME_UNITS[match[2]]) * Number(match[1]);
    }
    return ret;
}