Add seconds.milliseconds at the end of every console call

timestamped_console.js

const now = () => new Date().toISOString().replace(/^.*:([\d.]+)Z$/, '$1')

if (
  process.env.NODE_ENV === 'development'
  || (localStorage.debug === 'true' && !console.__ts__)
) {
  ['log', 'debug', 'info', 'warn', 'error'].forEach(method => {
    const original = console[method]
    console[method] = (...args) => original.call(console, ...args, `| ${now()}`)
  })
  console.__ts__ = true
}