Refactor timestamp matching/parsing into a cleaner set of modules

[briandk]

Consider this code from scrubVideoToTimestamp.js:

const moment = require('moment')

const scrubVideoToTimestamp = function () {
  let player = document.getElementsByTagName('video')[0]
  let timestamp = this.innerHTML
  const timeToGoTo = moment
    .duration(timestamp)
    .asSeconds()

What's not at all obvious

• What's the type of this?
• What's the value of this?
• If scrubVideoToTimestamp is an event-handling function (it's supposed to be), what function adds it as a listener to an element?
• Put another way, what function makes use of scrubVideoToTimestamp()?
  • What's the name of that function that attaches scrubVideoToTimestamp() to elements?
  • What module is the attachment function in?