findEqualSquareAreaSection

closure1.js

//"разделяй и влавствуй"
function findEqualSquareAreaSection(width = 0, height = 0) {
    if(isNaN(width) || isNaN(height) || height < 0 || width < 0) {
        return null;
    }

    const bigSide = Math.max(width, height);
    const smallSide = Math.min(width, height);

    if(bigSide % smallSide === 0) {
        return smallSide;
    }

    return findEqualSquareAreaSection(smallSide, (bigSide - smallSide));
}