Transform invite csv - capitalize name columns and lowercase emails

capitalize-names-in-csv.js

`First Name,Last Name,Email
john,doe,John.Doe@example.com
bobby,joe,Bobby.Joe@example.com`
  .split('\n')
  .map(r => r
    .split(',')
    .map((c, cIndex) => (cIndex === 2)
      ? c.toLowerCase()
      : c.charAt(0).toUpperCase() + c.slice(1).toLowerCase())
    .join(","))
  .join('\n');