Question

How to count the occurrences of a letter in string with JavaScript

Answer 1

function count(str, find) {
    return (str.split(find)).length - 1;
}

console.log(count("javascript programming", "a"));

  
    
    
/*
run:
    
3
    
*/

 

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Answer 2

const s = "javascript programming";
const count = (s.match(/a/g) || []).length;

console.log(count);

  
    
    
/*
run:
    
3
    
*/

 

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