# How to convert a number into an array in JavaScript?

Published July 6, 2021

To convert a number into an array, we can use the `from()`

method from the global `Array`

object in JavaScript.

### TL;DR

```
// random number
const num = 123456;
// use Array.from() method to convert numbers into an array
// Pass the string version of number "123456" as the first argument
// and the Number constructor as the second argument
const numsArr = Array.from(String(num), Number);
console.log(numsArr); // [1, 2, 3, 4, 5, 6]
```

Let's consider a number `123456`

like this,

```
// random number
const num = 123456;
```

Now to convert this number into an array, we can first use the `Array.from()`

method and pass the stringified version of the number `123456`

. To convert the number into a string, we can use the `String()`

method like this,

```
// random number
const num = 123456;
// use Array.from() method to convert numbers into an array
// Pass the string version of number "123456" as the first argument
const numsArr = Array.from(String(num));
console.log(numsArr); // ["1", "2", "3", "4", "5", "6"]
```

### NOTE: We are converting the number into a string since `string`

types in JavaScript can be array-like or iterable, which is what the first argument of the `Array.from()`

method expects.

Now, if we examine the contents of the `numsArr`

, we can see that the numbers have been converted to an array. There is only one problem: every element is a string version of the numbers, which is not what we need.

To convert the `string`

elements into their corresponding `number`

, we can pass the second argument of the `Number`

constructor to the `Array.from()`

method like this,

```
// random number
const num = 123456;
// use Array.from() method to convert numbers into an array
// Pass the string version of number "123456" as the first argument
// and the Number constructor as the second argument
const numsArr = Array.from(String(num), Number);
console.log(numsArr); // [1, 2, 3, 4, 5, 6]
```

Now if we look into the contents we have the correct numbers as the array elements. Yay ðŸŽŠ!

See the above code live in JSBin.

That's all ðŸ˜ƒ!