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`hint [4/6]`

- If you add the numbers that go before the new letter is introduced, it will save you plenty of code, like values for 4, 9, and 40.

type

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`hint [5/6]`

- You can't have more than three consecutive Roman numerals together.

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`hint [6/6]`

**Solution ahead!**

```
var convert = function(num) {
// Create arrays with default conversion with matching indices.
var decimalValue = [ 1000, 900, 500, 400, 100, 90, 50, 40, 10, 9, 5, 4, 1 ];
var romanNumeral = [ 'M', 'CM', 'D', 'CD', 'C', 'XC', 'L', 'XL', 'X', 'IX', 'V', 'IV', 'I' ];
//empty string variable for the final roman number
var romanized = '';
// Loop through the indices of the decimalValue array.
for (var index = 0; index < decimalValue.length; index++) {
// Continue to loop while the value at the current index will fit into numCopy
while (decimalValue[index] <= num) {
// Add the Roman numeral & decrease numCopy by the decimal equivalent.
romanized += romanNumeral[index];
num -= decimalValue[index];
}
}
return romanized;
};
```

- Read comments on code.

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`hint [1/6]`

Make sure you've tried to hard to solve it yourself before proceeding. :construction:

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`hint [2/6]`

- You will create a program that converts an integer to a roman numeral.

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```
function findLongestWord(str) {
return str.length;
}
findLongestWord('The quick brown fox jumped over the lazy dog');
```

Return the length of the longest word in the provided sentence.

more info:

`bf details`

|`bf links`

|`hint`

`hint [3/6]`

- Creating an array with the Roman Numerals and one with the decimal equivalent for the new forms will be very helpful.

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`hint [4/6]`

- If you add the numbers that go before the new letter is introduced, it will save you plenty of code, like values for 4, 9, and 40.

type

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`hint [5/6]`

- You can't have more than three consecutive Roman numerals together.

type

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`hint [6/6]`

**Solution ahead!**

```
var convert = function(num) {
// Create arrays with default conversion with matching indices.
var decimalValue = [ 1000, 900, 500, 400, 100, 90, 50, 40, 10, 9, 5, 4, 1 ];
var romanNumeral = [ 'M', 'CM', 'D', 'CD', 'C', 'XC', 'L', 'XL', 'X', 'IX', 'V', 'IV', 'I' ];
//empty string variable for the final roman number
var romanized = '';
// Loop through the indices of the decimalValue array.
for (var index = 0; index < decimalValue.length; index++) {
// Continue to loop while the value at the current index will fit into numCopy
while (decimalValue[index] <= num) {
// Add the Roman numeral & decrease numCopy by the decimal equivalent.
romanized += romanNumeral[index];
num -= decimalValue[index];
}
}
return romanized;
};
```

- Read comments on code.

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`hint [1/1]`

Make sure you've tried to hard to solve it yourself before proceeding. :construction:

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`hint [1/1]`

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Spoiler Alert !!!!

```
function convertToRoman(num) {
var roman = {"1": "I", "2": "II", "3": "III", "4": "IV", "5": "V", "6": "VI", "7": "VII", "8": "VIII", "9": "IX", "10": "X", "20": "XX", "30": "XXX", "40": "XL", "50": "L", "60": "LX", "70": "LXX", "80": "LXXX", "90": "XC", "100": "C", "200": "CC", "300": "CCC", "400": "CD", "500": "D", "600": "DC", "700": "DCC", "800": "DCCC", "900": "CM", "1000": "M", "2000": "MM", "3000": "MMM"};
return num.toString().split("").map(function(val, index, n) {
return roman[(val * (Math.pow(10, n.length - index - 1))).toString()];
}).join("");
}
```

@Deepak Chairman that what I am looking for code like yours. Need some advice and help in numeral-roman converter challenge. I I have already solved the challenge but I need to use of splice , indexOf and join methods. Also need to avoid nested loop. I know you can use higher order functions to avoid the loop. Or functional method. Thank you for your help.