OccCounter_V4.js

function countChar(str) {
    let myObj= {};
    for (let s of str) {
        if ( myObj[s] ? myObj[s].count ++ : myObj[s] = { count : 1 } );
    }
    return myObj;
}

var charCount = countChar('abcceddd');


//source 
// https://stackoverflow.com/questions/19480916/count-number-of-occurrences-for-each-char-in-a-string
// https://stackoverflow.com/a/67044262/13861187