# How to Convert an Integer to an Array of Digits in JavaScript?

To convert an integer to an Array of digits, you can use the following approach:

1. Convert the integer to a string using the `String()` method.
2. Split the string into an array containing each digit as a character using the `Array.split()` method.
3. Convert each character digit of the array into a number using the `Number()` method.
```let number = 98315;

// Convert number into string
let str = String(number);

// Split string into a char array
const strArr = str.split('');

// Convert each char digit to number
const result = strArr.map(digit=>Number(digit));

console.log(result);
// Output: [9, 8, 3, 1, 5]```

Let’s understand how the above code works.

In the very first step, we converted the number into its equivalent string using the `String()` method. The `String()` is a built-in function in JavaScript that converts the given value into a string.

```String(98315);
// "98315"```

In the second step, we split the string equivalent of the number into an array using the `split()` method.

The `split()` method splits the string into an array based on the separator we have passed to it. We passed the empty string(`''`) as a separator to the `split()` method as we want to split the string at each character.

```"98315".split('');
// ["9", "8", "3", "1", "5"]```

The array that we got in the second step contains each digit of the number but as a string. Therefore, we have to convert each item of the array into a number using the `Number()` method.

To convert each item of the array to a number you can either use a `for` loop with the `Number()` method or directly use the `Array.map()` method.

The `map()` method calls a mapping function on each element of the array and returns a new array containing the modified items.

```["9", "8", "3", "1", "5"].map(digit=>Number(digit));
// [9, 8, 3, 1, 5]```

You can also shorten the above code by avoiding all unnecessary variable declarations and combining the whole code into just a single line.

Something like this:

```let number = 98315;

// Convert the number into digit array
const result = String(number).split('').map(digit=>Number(digit));

console.log(result);
// Output: [9, 8, 3, 1, 5]```

## Method 2: Using the Array.from() method

You can also use the `Array.from()` method to convert the integer to an array of digits.

The `Array.from()` method takes two parameters and returns a new array.

The first parameter is an iterable object from which we want to create the array and the second is a mapping function which one by one runs on each item of the iterable.

`Array.from(iterable, mappingFun);`

In our case, the iterable object will be the string that we get by converting the number into a string.

The mapping function will convert each character digit into its equivalent number.

```let number = 98315;

// Convert the number into digit array
const result = Array.from(String(number), (x)=>Number(x));

console.log(result);
// Output: [9, 8, 3, 1, 5]```