luhn-generator/update/node_modules/browser-stdout/index.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 WritableStream = require('stream').Writable
var inherits = require('util').inherits

module.exports = BrowserStdout


inherits(BrowserStdout, WritableStream)

function BrowserStdout(opts) {
  if (!(this instanceof BrowserStdout)) return new BrowserStdout(opts)

  opts = opts || {}
  WritableStream.call(this, opts)
  this.label = (opts.label !== undefined) ? opts.label : 'stdout'
}

BrowserStdout.prototype._write = function(chunks, encoding, cb) {
  var output = chunks.toString ? chunks.toString() : chunks
  if (this.label === false) {
    console.log(output)
  } else {
    console.log(this.label+':', output)
  }
  process.nextTick(cb)
}