---
id: 5d8a4cfbe6b6180ed9a1ca6b
title: Part 139
challengeType: 0
dashedName: part-139
---
# --description--
Go to where you `call` the `xAxis` and create a `mouseover` event for the labels. Chain the `on` function to them, pass it the string `mouseover`, and give it a value of a "d function" that calls `drawDashboard` with `d` as the argument. It will look like this:
```js
.on('mouseover', d => drawDashboard(d))
```
So now, when you hover a label, the function will be called with the year that is being hovered.
# --hints--
test-text
```js
const script = $('.dashboard').siblings('script')[1].innerHTML;
assert(
/\.on\(('|"|`)mouseover\1, function \(d\) \{\s*return drawDashboard\(d\);\s*\}\)/g.test(
script
)
);
```
# --seed--
## --before-user-code--
```html
D3 Dashboard
```
## --seed-contents--
```html
```
# --solutions--
```html
```