electron/docs/fiddles/system/system-information/get-version-information/renderer.js

const { shell } = require('electron')

const versionInfoBtn = document.getElementById('version-info')

const electronVersion = process.versions.electron

versionInfoBtn.addEventListener('click', () => {
  const message = `This app is using Electron version: ${electronVersion}`
  document.getElementById('got-version-info').innerHTML = message
})

const links = document.querySelectorAll('a[href]')

for (const link of links) {
  const url = link.getAttribute('href')
  if (url.indexOf('http') === 0) {
    link.addEventListener('click', (e) => {
      e.preventDefault()
      shell.openExternal(url)
    })
  }
}