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30-seconds-of-code/snippets/countVowels.md
Selim Ajimi d778ddb2c8 Fix typos in spaces 
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2017-12-22 23:48:42 +01:00

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countVowels

Retuns number of vowels in provided string.

Use a regular expression to count the number of vowels (A, E, I, O, U) in a string.

const countVowels = str => (str.match(/[aeiou]/ig) || []).length;
// countVowels('foobar') -> 3
// countVowels('gym') -> 0