114 lines
3.0 KiB
Markdown
114 lines
3.0 KiB
Markdown
---
|
|
id: 5d8a4cfbe6b6180ed9a1c9ee
|
|
title: Part 17
|
|
challengeType: 0
|
|
dashedName: part-17
|
|
---
|
|
|
|
# --description--
|
|
|
|
When you added the D3 library earlier, it put an object named `d3` in your project with a bunch of functions. One of them is `select`; you can use dot notation to access this and the other functions from the object. Create a new variable named `lineGraph` and use `d3.select` to select the `.dashboard` element. Here's an example of something similar:
|
|
|
|
```js
|
|
const variableName = d3.select('.className')
|
|
```
|
|
|
|
# --hints--
|
|
|
|
test-text
|
|
|
|
```js
|
|
assert(lineGraph._groups[0][0] === $('.dashboard')[0]);
|
|
```
|
|
|
|
# --seed--
|
|
|
|
## --before-user-code--
|
|
|
|
```html
|
|
<!DOCTYPE html>
|
|
<html>
|
|
<head>
|
|
<title>D3 Dashboard</title>
|
|
<style>
|
|
body {
|
|
background-color: #ccc;
|
|
padding: 100px 10px;
|
|
}
|
|
|
|
.dashboard {
|
|
width: 980px;
|
|
height: 500px;
|
|
background-color: white;
|
|
box-shadow: 5px 5px 5px 5px #888;
|
|
margin: auto;
|
|
display: flex;
|
|
align-items: center;
|
|
}
|
|
</style>
|
|
</head>
|
|
|
|
<body>
|
|
<div class="dashboard"></div>
|
|
</body>
|
|
</html>
|
|
```
|
|
|
|
## --seed-contents--
|
|
|
|
```html
|
|
<script>
|
|
const data = [
|
|
{ year: 2012, followers: { twitter: 2594, tumblr: 401, instagram: 83 }},
|
|
{ year: 2013, followers: { twitter: 3049, tumblr: 440, instagram: 192 }},
|
|
{ year: 2014, followers: { twitter: 3511, tumblr: 415, instagram: 511 }},
|
|
{ year: 2015, followers: { twitter: 3619, tumblr: 492, instagram: 1014 }},
|
|
{ year: 2016, followers: { twitter: 4046, tumblr: 543, instagram: 2066 }},
|
|
{ year: 2017, followers: { twitter: 3991, tumblr: 701, instagram: 3032 }},
|
|
{ year: 2018, followers: { twitter: 3512, tumblr: 1522, instagram: 4512 }},
|
|
{ year: 2019, followers: { twitter: 3274, tumblr: 1989, instagram: 4715 }},
|
|
{ year: 2020, followers: { twitter: 2845, tumblr: 2040, instagram: 4801 }}
|
|
];
|
|
</script>
|
|
<script>
|
|
const svgMargin = 70,
|
|
svgWidth = 700,
|
|
svgHeight = 500,
|
|
twitterColor = '#7cd9d1',
|
|
tumblrColor = '#f6dd71',
|
|
instagramColor = '#fd9b98';
|
|
|
|
|
|
</script>
|
|
```
|
|
|
|
# --solutions--
|
|
|
|
```html
|
|
<script>
|
|
const data = [
|
|
{ year: 2012, followers: { twitter: 2594, tumblr: 401, instagram: 83 }},
|
|
{ year: 2013, followers: { twitter: 3049, tumblr: 440, instagram: 192 }},
|
|
{ year: 2014, followers: { twitter: 3511, tumblr: 415, instagram: 511 }},
|
|
{ year: 2015, followers: { twitter: 3619, tumblr: 492, instagram: 1014 }},
|
|
{ year: 2016, followers: { twitter: 4046, tumblr: 543, instagram: 2066 }},
|
|
{ year: 2017, followers: { twitter: 3991, tumblr: 701, instagram: 3032 }},
|
|
{ year: 2018, followers: { twitter: 3512, tumblr: 1522, instagram: 4512 }},
|
|
{ year: 2019, followers: { twitter: 3274, tumblr: 1989, instagram: 4715 }},
|
|
{ year: 2020, followers: { twitter: 2845, tumblr: 2040, instagram: 4801 }}
|
|
];
|
|
</script>
|
|
<script>
|
|
const svgMargin = 70,
|
|
svgWidth = 700,
|
|
svgHeight = 500,
|
|
twitterColor = '#7cd9d1',
|
|
tumblrColor = '#f6dd71',
|
|
instagramColor = '#fd9b98';
|
|
|
|
const lineGraph = d3.select('.dashboard')
|
|
|
|
|
|
</script>
|
|
```
|