ES6 String iterator that parses line-by-line off of \n

line-iterator.js

'use strict';

function *LineIterator (str) {
  let pos = 0;
  let delimiter = '\n';
  while (true) {
    let index = str.indexOf(delimiter, pos);
    if (index === -1) break;
    yield str.substring(pos, index);
    pos = index + delimiter.length;
  }
  yield str.substring(pos);
}

module.exports = LineIterator;


// USAGE /////////////////////////////////////////
for (let line of LineIterator('1\n2\n3\n')) {
  console.log(line);
  // '1'
  // '2'
  // '3'
  // ''
}

@TooTallNate FYI, I've published a package for that: https://github.com/ngryman/lines-iterator.