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BridgeNB/noteFindMostFrequentWord

Created June 26, 2018 20:03
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find most frequent word
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noteFindMostFrequentWord
1. getToken function takes a raw string converted to an array consisted words.
All words in that array are in lower cases, no punctuations and falsy items, sorted by alphabetical order.
2. mostFrequentWord function takes a raw string and use getToken to covert it to tokens.
Then build a dictionary (hash map) to count all words' frequency. Then use a loop to find the most frequent word.
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