I started learning javascript this March after so so doing very fine in HTML & CSS. I got my code to work. However, I need some tips on how I can make a functional program out of it.
function convertToRoman(num) {
const numericValue = [ 1, 4, 5, 9, 10, 40, 50, 90, 100, 400, 500, 900, 1000 ];
const romanValue = [ "I", "IV", "V", "IX", "X", "XL", "L", "XC", "C", "CD", "D", "CM", "M" ];
let iterator = numericValue.length - 1;
let temp = 0;
let romanNumeralValue = "";
//make sure num is a number > 0
if (typeof(num) === "number" && num > 0) {
//do while num is > 0
while(num > 0) {
//get how many roman value to repeat, if 0 then below if does not apply
temp = Math.floor(num / numericValue[iterator]);
//go through each thousands, hundreds, tens and ones
num = num % numericValue[iterator];
//concatenate roman value from array into final romanNumeralValue string
if (temp > 0) {
for(let i = 1; i <= temp; i++) {
romanNumeralValue += romanValue[iterator];
}
}
// iterate down through the array, repeat the while loop until condition is met
iterator--;
}
} else {
romanNumeralValue = 0;
}
return romanNumeralValue;
}
console.log(convertToRoman(230));