get-youtube-timestamps

get-youtube-timestamps.js

console.log(getYoutubeTimestamps())

// works for videos less than 100 hours (should be enough, but easily extensible)
function getYoutubeTimestamps({withMilliseconds = true} = {}) { 
  if ($('#right-arrow')) {
    $('#right-arrow').click()
  }
  let chaptersTimestampList = [...$$('[slot="extra-content"] #scroll-container #endpoint > #details:not([hidden]) #time')].map(item => ({
    timestamp: item.textContent,
    title: item.previousElementSibling.textContent
  }))

  if (!chaptersTimestampList) {
    chaptersTimestampList = [...$$('#scroll-container > #items #details:not([hidden]) > #time')].map(item => ({
    timestamp: item.textContent,
    title: item.previousElementSibling.textContent
  }))
  }
  
  return chaptersTimestampList.map(item => {
    const timestampSplitted = item.timestamp.split(':')
    let hours, minutes, seconds = ''
    
    if (timestampSplitted.length === 2) {
      [minutes, seconds] = timestampSplitted
      hours = '00'
    }
    if (timestampSplitted.length === 3) {
      [hours = '00', minutes, seconds] = timestampSplitted
    }
    
    minutes = `0${minutes}`.slice(-2)
    hours = hours !== '00' ? `0${hours}`.slice(-2) : hours

    let timestamp = `${hours}:${minutes}:${seconds}`
    
    if (withMilliseconds) {
      timestamp = `${timestamp}.000` 
    }
    
    return `${timestamp} ${item.title}`
}).join('\n')
}