21.Bonfire: Roman Numeral Converter

Roman Numeral Converter

function convert(num) {
    //I V X L C D M
    var roman = '';
    var counter = num;
    while (counter !== 0) {
        
        console.log(counter);
        
        if (counter >= 1000) {
            for (var i = 0; i < Math.floor(counter/1000); i++) {
                roman += 'M';
            }
            counter -= Math.floor(num/1000) * 1000;
            num = counter;
        }
        
        else if (counter >= 900) {
            for (var i = 0; i < Math.floor(counter/900); i++) {
                roman += 'CM';
            }
            counter -= Math.floor(num/900) * 900;
            num = counter;
        }
        
        else if (counter >= 500) {
            for (var i = 0; i < Math.floor(counter/500); i++) {
                roman += 'D';
            }
            counter -= Math.floor(num/500) * 500;
            num = counter;
        }
        
        else if (counter >= 400) {
            for (var i = 0; i < Math.floor(counter/400); i++) {
                roman += 'CD';
            }
            counter -= Math.floor(num/400) * 400;
            num = counter;
        }
        
        else if (counter >= 100) {
            for (var i = 0; i < Math.floor(counter/100); i++) {
                roman += 'C';
            }
            counter -= Math.floor(num/100) * 100;
            num = counter;
        }
        
        else if (counter >= 90) {
            for (var i = 0; i < Math.floor(counter/90); i++) {
                roman += 'XC';
            }
            counter -= Math.floor(num/90) * 90;
            num = counter;
        }
        
        else if (counter >= 50) {
            for (var i = 0; i < Math.floor(counter/50); i++) {
                roman += 'L';
            }
            counter -= Math.floor(num/50) * 50;
            num = counter;
        }
        
        else if (counter >= 40) {
            for (var i = 0; i < Math.floor(counter/40); i++) {
                roman += 'XL';
            }
            counter -= Math.floor(num/40) * 40;
            num = counter;
        }
        
        else if (counter >= 10) {
            for (var i = 0; i < Math.floor(counter/10); i++) {
                roman += 'X';
            }
            counter -= Math.floor(num/10) * 10;
            num = counter;
        }
        
        else if (counter >= 9) {
            for (var i = 0; i < Math.floor(counter/9); i++) {
                roman += 'IX';
            }
            counter -= Math.floor(num/9) * 9;
            num = counter;
        }
        
        else if (counter >= 5) {
            for (var i = 0; i < Math.floor(counter/5); i++) {
                roman += 'V';
            }
            counter -= Math.floor(num/5) * 5;
            num = counter;
        }
        
        else if (counter >= 4) {
            for (var i = 0; i < Math.floor(counter/4); i++) {
                roman += 'IV';
            }
            counter -= Math.floor(num/4) * 4;
            num = counter;
        }
        
        else {
            for (var i = 0; i < counter; i++) {
                roman += 'I';
            }
            counter = 0;
        }
    }
    return roman;
}
convert(544);