Hackerrank Ransom Note Problem

rasomNote.js

/**
*Direct Link: https://www.hackerrank.com/challenges/ctci-ransom-note/problem
*/
function splitTextByReg(magazine, note) {
  //Split both magazine words & note words by space -> Now we have two arrays
  //From that arrays, check whether 
  let ransomNote = true;
//   let magazineArr = magazine.split(" ");
//   let noteArr = note.split(" ");
  
  //create hashtable
  let magazineMap = generateWordsMap(magazine); //{attack:1, dawn:1}
  let noteMap = generateWordsMap(noteArr);        
  
  Object.keys(noteMap).forEach(function(word) {
    if(magazineMap[word] !== noteMap[word]) {
      ransomNote = false; 
    }
  });
  return ransomNote===true? 'Yes':'No' ;
}

function generateWordsMap(wordArr) {
  let wordOccurence = {};
  
  wordOccurence = wordArr.reduce((wordMap, word) => {
    if(!Object.hasOwnProperty.call(wordMap, word)) {
      wordOccurence[word] = 1;
    }
    else wordOccurence[word] = wordOccurence[word]+1;
    return wordOccurence;
  },{});
  
  return wordOccurence;
}


let magazine = "attack at dawn";
let note = "Attack at dawn";

console.log(splitTextByReg(magazine,note ));