// checking for the same number of Os (letter as in Oh) and Xs in a string;

function sameXOAmount1(str) {

    let numOfOs = 0;
    let numOfXs = 0;

    let arr = Array.from(str);
    arr.forEach(letter => {
        if (letter.toLowerCase() == 'o') {
            numOfOs++;
        }
        if (letter.toLowerCase() == 'x') {
            numOfXs++;
        }
    });

    return numOfOs == numOfXs;
}