'use strict';
const fs = require('fs');
let i = 0;
const printer = function () {
  const fil = fs.createWriteStream('file');
  const MAX_LIM = 1e600;
  const writer = function () {
    let result = true;
    while (i < MAX_LIM && result) {
      result = fil.write(`->${i}<-\n`);
      i += 1;
    }
    if (i < MAX_LIM)
      fil.once('drain', writer);
  }
  return writer;
}
const printty = printer();
printty();