Challenge: analyze a most frequent word program

Challenge: analyze a most frequent word program

function getTokens(rawString) {
  // NB: `.filter(Boolean)` removes any falsy items from an array
  return rawString.toLowerCase().split(/[ ,!.";:-]+/).filter(Boolean).sort();
  /*returns a raw string, converts to lower case, splots the words/letters 
  by the user of spaces, commas, exclamation points, periods quotes, 
  semicolons, colons, hyphens and sort them in alphabetical order after 
  finding out if it is true or not*/
}
  
function mostFrequentWord(text) {
  var words = getTokens(text);
  /* create a variable called word which passes the "get tokens" function 
  with any string of text from the text parameter */
  var wordFrequencies = {};
  /* create a wordFrequencies variable which is equal to an empty object 
  that we will be filling in */
  for (var i = 0; i <= words.length; i++) {
    /* creating a for loop starting at the first object until the last
    item within the word array and */
    if (words[i] in wordFrequencies) {
      /* if the current word within the empty is object is true, then run
      this function below*/
      wordFrequencies[words[i]]++;
      /* get the current object from wordFrequencies and add to it*/
      
    }
    else {
      /* if the current word within the empty object is false, then run
      this funcion below */
      wordFrequencies[words[i]]=1;
      /* get the current object from wordFrequencies and have it equal to 1*/
    }
  }
  var currentMaxKey = Object.keys(wordFrequencies)[0];
  /* create a variable called currentMaxKey which takes the object */
  var currentMaxCount = wordFrequencies[currentMaxKey];
  /* create a currentmaxCount variable which passes the wordFrequencies
  object with the currentMaxKey parameter*/
  
  for (var word in wordFrequencies) {
    if (wordFrequencies[word] > currentMaxCount) {
      /* if the wordFrequencies text amount is greater than the currentMaxCount
      dicated from the variable out side of here, then change the variables below */
      currentMaxKey = word;
      /* currentMaxKey is now set to the word parameter */
      currentMaxCount = wordFrequencies[word];
      /* currentMaxCount is not set to the wordFrequencies parameter */
    }
  }
  return currentMaxKey;
  /* return the final output for the new current max key */
}