Generated readme, index and tag_database for countVowels

README.md

@@ -110,6 +110,7 @@
 * [`anagrams`](#anagrams)
 * [`capitalize`](#capitalize)
 * [`capitalizeEveryWord`](#capitalizeeveryword)
+* [`countVowels`](#countvowels)
 * [`escapeRegExp`](#escaperegexp)
 * [`fromCamelCase`](#fromcamelcase)
 * [`reverseString`](#reversestring)
@@ -1452,6 +1453,21 @@ const capitalizeEveryWord = str => str.replace(/\b[a-z]/g, char => char.toUpperC
 
 [⬆ back to top](#table-of-contents)
 
+### countVowels
+
+Retuns `number` of vowels in provided string.
+
+Use a regular expression to count number of vowels `(A, E, I, O, U)` in a `string`.
+
+```js
+const countVowels = str =>
+  return (str.match(/[aeiou]/ig) || []).length;
+// countVowels('foobar') -> 3
+// countVowels('gym') -> 0
+```
+
+[⬆ back to top](#table-of-contents)
+
 ### escapeRegExp
 
 Escapes a string to use in a regular expression.