How to get a number of vowels in a string in JavaScript?
The Approach of this article is to return the number of vowels in a string using Javascript. A vowel is also a letter that represents a sound produced in this way: The vowels in English are a, e, i, o, u.
Example:
Input:GeeksForGeeks Output: 5 Input: Hello Geeks Output: 4
Explanation: Here we create a user-defined function called “getvowels()” which reads a string and compare with list of vowels. It compares each character of a string with vowels. When the vowels is matches it will increment the value of the vowelsCount.
Example: Below code will illustrate the approach.
HTML
<html> <head> <title> How to get a number of vowels in a string in JavaScript? </title> </head> <body> <h1> GeeksforGeeks </h1> <h2> How to get a number of vowels in a string in JavaScript? </h2><script> function getVowels(string) { var Vowels = 'aAeEiIoOuU'; var vowelsCount = 0; for(var i = 0; i < string.length ; i++) { if (Vowels.indexOf(string[i]) !== -1) { vowelsCount += 1; } } return vowelsCount; } document.write("The Number of vowels in -"+ " A Computer Science Portal for Geeks:" + getVowels("A Computer Science Portal for Geeks"));</script></body></html> |
Output:
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