Write a function countVowels(text) that returns the number of vowels in a string. The vowels are the Latin letters a, e, i, o, u, in upper or lower case.
countVowels('Hello World')Returns 3
countVowels('Apple')Returns 2
countVowels('rhythm')Returns 0
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countVowels('Hello World')3countVowels('Apple')2countVowels('rhythm')0Hidden tests run on Submit.