Computer scienceProgramming languagesKotlinTypes and data structuresStrings

CharSequence

Theory

Number of vowels

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Implement a function countVowels(charSequence: CharSequence) that takes a CharSequence as input and returns the number of vowels (a, e, i, o, u, y) in the sequence.

Sample Input 1: 

hello world

Sample Output 1: 

3
Write a program in Kotlin
fun countVowels(charSequence: CharSequence): Int {
// write your code here
}
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