查看“︁Widget:TracklistSongLengthCalc”︁的源代码

<noinclude>Only for {{tl|Tracklist}}</noinclude><includeonly><!--{if !isset($wgTracklistSongLengthCalc) || !$wgTracklistSongLengthCalc}--><!--{assign var="wgTracklistSongLengthCalc" value=true scope="global"}--><script>
/* global window, document, $ */
(window.RLQ ||= []).push([
    [
        "mediawiki.base",
        "jquery",
    ],
    async () => {
        await $.ready;
        for (const element of document.querySelectorAll(".tracklist")) {
            const target = element.querySelector(".total_length");
            if (!target) {
                continue;
            }
            let total = 0;
            for (const songElement of element.querySelectorAll(".song_length")) {
                const text = songElement.textContent.trim();
                const match = text.match(/(\d+):(\d+)/);
                if (!match) {
                    continue;
                }
                const [, minutes, seconds] = match;
                total += +minutes * 60 + +seconds;
            }
            const min = Math.floor(total / 60);
            const sec = (total % 60).toString().padStart(2, "0");
            target.textContent = `${min}:${sec}`;
        }
    },
]);
</script><!--{/if}--></includeonly>