Mapreduce Debug (ES6 & ES5)

mrdbg-es5.js

//Transpiled from Babel
"use strict";

function MRDbg() {
  for (var _len = arguments.length, txt = Array(_len), _key = 0; _key < _len; _key++) {
    txt[_key] = arguments[_key];
  }

  return function (prev, cur, i, arr) {
    if (i === 1) {
      console.log.apply(console, [].concat(txt, [arr]));
    }
    return arr;
  };
}

mrdbg-es6.js

function MRDbg(...txt){
  return function(prev, cur, i, arr){
    if (i === 1){
      console.log.apply(console, [...txt, arr]);
    }
    return arr;
  }
}