Question

How to count vowels in a string with JavaScript

Answer 1

function vowel_count(str) {
	const vowels = 'aeiouAEIOU';
	let count = 0;
   
	for (let i = 0; i < str.length ; i++)  {
		if (vowels.indexOf(str[i]) !== -1) {
			count += 1;
		}
	}
	
  return count;
}
 
console.log(vowel_count("javascript programming"));
   
   
     
     
/*
run:
 
6
     
*/
 
  

 

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Answer 2

function vowel_count(str) {
  	const vowels = /[aeiou]/gi;
  	const result = str.match(vowels);
  	const count = result.length;
     
  	return count;
}
  
console.log(vowel_count("javascript programming"));
    
    
      
      
/*
run:
  
6
      
*/

 

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