removeduplicates.js

function sleep(ms) {
  return new Promise(resolve => setTimeout(resolve, ms));
}

async function removeduplicates() {
    let titles = document.querySelectorAll('#primary #video-title')
    let href_pattern = RegExp('https?://www\\.youtube\\.com/watch\\?v=[^&]*&list=[^&]*&index=')
    titles = Array.from(titles).filter(t => href_pattern.test(t.href))

    let exists = {}
    for (let i = 0; i < titles.length; i++) {
        let id = titles[i].href.match(/\\?v=([^&]+)/)[1]
        if(exists[id]) {
            titles[i].focus()
            titles[i].parentElement.parentElement.parentElement.parentElement.parentElement.querySelector('button[aria-label="操作菜单"]').click()
            await sleep(100)
            var things = document.evaluate(
                '//span[contains(text(),"中移除")]',
                document,
                null,
                XPathResult.ORDERED_NODE_SNAPSHOT_TYPE,
                null
            );
            await sleep(300)
            for (var j = 0; j < things.snapshotLength; j++) {
                things.snapshotItem(j).click();
            }
            console.log(titles[i].innerText)
        }
        exists[id] = true
    }
}

removeduplicates()

适用于简体中文界面的 YouTube 列表 Deduplicate 脚本，直接在 F12 窗口或者油猴一类地方执行喵~

参考来源： https://stackoverflow.com/questions/66940041/is-there-a-javascript-to-remove-duplicate-videos-in-a-youtube-playlist

修订了里面部分逻辑和语言适配喵（X