---
id: 5d8a4cfbe6b6180ed9a1c9f3
title: Step 22
challengeType: 0
dashedName: step-22
---
# --description--
D3 has a bunch of functions for working with scales as well. One of them is `domain`. It takes an array that is used to describe the highest and lowest values of the data for this scale. After a quick look at the data, the values of the "followers" go from about 0 to 5000. Chain the `domain` function to the `yScale` and pass it the array `[0, 5000]`.
# --hints--
test-text
```js
const domain = yScale.domain();
assert(domain.length === 2 && domain[0] === 0 && domain[1] === 5000);
```
# --seed--
## --before-user-code--
```html
D3 Dashboard
```
## --seed-contents--
```html
```
# --solutions--
```html
```