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RomanNumeralConverter.js
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RomanNumeralConverter.js
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function convertToRoman(num) {
var stringNum = String(num);
var arr = stringNum.split("");
var x;
var char1;
var char2;
var char3;
var result = "";
var j;
if (stringNum.length == 4) {
j = 4;
} else if (stringNum.length == 3) {
j = 3;
} else if (stringNum.length == 2) {
j = 2;
} else if (stringNum.length == 1) {
j = 1;
}
for (var i = 0; i < stringNum.length ; i++) {
if (j == 1) {
char1 = "X";
char2 = "V";
char3 = "I";
} else if (j == 2) {
char1 = "C";
char2 = "L";
char3 = "X";
} else if (j == 3) {
char1 = "M";
char2 = "D";
char3 = "C";
} else {
char1 = "X";
char2 = "V";
char3 = "M";
}
x = arr[i];
switch (x) {
case "1":
result += char3;
break;
case "2":
result += char3 + char3;
break;
case "3":
result += char3 + char3 + char3;
break;
case "4":
result += char3 + char2;
break;
case "5":
result += char2;
break;
case "6":
result += char2 + char3;
break;
case "7":
result += char2 + char3 + char3;
break;
case "8":
result += char2 + char3 + char3 + char3;
break;
case "9":
result += char3 + char1;
break;
}
j--;
}
return result;
}
convertToRoman(2);