luhn-generator/update/node_modules/readable-stream/writable.js

A generator of numbers that passes the validation of Luhn algorithm or Luhn formula, also known as the 'modulus 10' or 'mod 10' algorithm

var Stream = require("stream")
var Writable = require("./lib/_stream_writable.js")

if (process.env.READABLE_STREAM === 'disable') {
  module.exports = Stream && Stream.Writable || Writable
} else {
  module.exports = Writable
}