grokkRound2

On line 7, the variable “words” is created.  The text is trimmed down to only lower case words with no punctuation by the getTokens function.

Line 8  wordFrequencies is declared as a function

Line 9-15 the text is checked to see if a word is repeated and if so how many times.

Line 9  iterate over the array of words //  starting the count at zero

Line 10 for each element in the words array, check to see if it already exists in the wordFrequencies object

Line 11 count the number of times a word appears in the wordFrequencies object if it appears more than once

Line12-13 otherwise, it’s value is 1 // 

Line 16 the word (item)  used with the most frequency is placed in the first position of an array, the array is created by using the object.keys method. The key would be the word itself and the value would be the number of times counted

Line 17  the maxCount is declared as the number of times a word is used

// maxCount = number of times a word is used
// maxKey = the word itself

Line 19-24 the words are counted and the the word with the highest count, maxKey, is given the number value of how many times it was counted.

Line 19 check to see if word exists in wordFrequencies

Line 20 a Boolean function that will return true if the value of the given word is greater than the currentMaxCount

Line 21 the currentMaxKey will equal that specific word with the highest count

Line 22 the currentMaxCount will equal the value/property of that specific word


Line 25 the function mostFrequentWord, at long last, returns the most frequently used word in the text (maxKey).