Removes Pinterest and it's 1000 domains from Google search (By shoving them into a <details>)

pinterest-remove.user.js

// ==UserScript==
// @name         Google Pinterest Remover
// @description  Removes Pinterest and it's 1000 domains from Google search (By shoving them into a <details>)
// @version      2
// @include      http*://www.google.*/search*
// @grant        none
// ==/UserScript==

const res = document.getElementById('res')
const hidden = document.createElement('details')
const summary = document.createElement('summary')

const siteReg = /(?:https?:\/\/)?(?:www\.)?(.*?)\./
const blacklist = ['pinterest']
const isBlacklisted = site => {
	const match = siteReg.exec(site)
  return match && blacklist.includes(match[1].toLowerCase())
}

hidden.appendChild(summary)

for (let a of res.querySelectorAll('.g')) {
  if (a.id) continue

  const cite = a.getElementsByTagName('cite')[0]
  const site = cite ? cite.innerText : ''

  if (site && isBlacklisted(site)) {
  	hidden.appendChild(a.cloneNode(true))
  	a.parentElement.removeChild(a)
  }
}

if (hidden.children.length > 1) {
  summary.innerText = `Hidden Pinterest Results (${hidden.children.length})`
  hidden.style.paddingBottom = '30px'
  hidden.style.color = '#eee'
  res.appendChild(hidden)
}