Convert array to csv

array-to-csv.js

function arrayToCsv(data) {
  return data
    .map(
      row =>
        row
          .map(String) // convert every value to String
          .map(v => v.replaceAll('"', '""')) // escape double colons
          .map(v => `"${v}"`) // quote it
          .join(",") // comma-separated
    )
    .join("\r\n") // rows starting on new lines
}