Count Vowels

Write a method that takes a string and returns the number of vowels in the string. You may assume that all the letters are lower cased.  You can treat “y” as a consonant.

Screen Shot 2016-08-11 at 2.57.21 PM.png

Note: I overcomplicated this problem in my mind.  Remember to use += 1 to count something.

Second time solving this:

screen-shot-2016-09-08-at-3-27-04-pm

I forgot to initialize count to 0  (I apparently forgot the first time as well)  and I also started off splitting the string into letters, which was unnecessary.

Third time, using a hash map (with the help of Josh)!

Screen Shot 2016-11-01 at 9.50.42 PM.png

By using hash, it would be more efficient to add more vowels later.

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Count Vowels

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