pipe to js. Pipe from file, echo or just pass some args

pipeToMe.js

#!/usr/bin/env node

// 1. add shebang above
// 2. make file executable
// $ chmod +x pipeToMe.js
// 3. pipe from file
// $ cat file | ./pipeToMe.js
// 4. pipe from echo
// $ echo -n one two | ./pipeToMe.js
// 5. just pass some args
// $ ./pipeToMe.js one two

function parsePipedData() {
  var data = '',
      out;

  process.stdin
    .on('data', function(chunk) {
      data += chunk;
    })
    .on('end', function() {
      if (/\n/.test(data)) { // split by EOL
        out = data
          .trim()
          .split('\n')
          .filter(function(item){ // filter empty strings
            return item;
          });
        console.log(out);

      } else if (/\s/.test(data)) { // split by space
        console.log(data.trim().split(' '));
      } else {
        console.log('nothing found');
      }
  });
}

function parseShellArgs() {
  console.log(process.argv.slice(2));
}

if (process.stdin.isTTY) {
  parseShellArgs();
} else {
  parsePipedData();
}