@mxmitch/lotide/letterPositions.js

A mini clone of the [Lodash](https://lodash.com) library.

// const eqArrays = require('./eqArrays');

const letterPositions = function(sentence) {
  const results = {};
  for (let i = 0; i < sentence.length; i++) {
    if (results[sentence[i]]) {
      results[sentence[i]].push(i);
    } else {
      results[sentence[i]] = [i];
    }
  }
  return results;
};

// const assertArraysEqual = function(actual, expected) {
//   if (eqArrays(actual, expected)) {
//     console.log(`✅✅✅ Assertion Passed: ${actual} === ${expected}`);
//   } else {
//     console.log(`🛑🛑🛑 Assertion Failed: ${actual} !== ${expected}`);
//   }
// };

module.exports = letterPositions;