2020-02-25 22:53:07 -06:00
---
id: 5d8a4cfbe6b6180ed9a1ca11
title: Part 52
challengeType: 0
2021-01-13 03:31:00 +01:00
dashedName: part-52
2020-02-25 22:53:07 -06:00
---
2020-11-27 19:02:05 +01:00
# --description--
2020-02-25 22:53:07 -06:00
Set the `y` values for `tumblrLine` using a "d function" again. Use your `yScale` and `d.followers.tumblr` to calculcate their values just like you did for the Twitter line.
The x values for each line will be the same, but the y values will use the data from the different platforms.
2020-11-27 19:02:05 +01:00
# --hints--
2020-02-25 22:53:07 -06:00
2020-11-27 19:02:05 +01:00
test-text
2020-02-25 22:53:07 -06:00
2020-11-27 19:02:05 +01:00
```js
assert(
/\.y\s*\(\s*d\s*=>\s*yScale\s*\(\s*d\.followers.tumblr\s*\)\s*\)/g.test(code)
);
2020-02-25 22:53:07 -06:00
```
2020-11-27 19:02:05 +01:00
# --seed--
2020-02-25 22:53:07 -06:00
2020-11-27 19:02:05 +01:00
## --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--
2020-02-25 22:53:07 -06:00
```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')
.append('svg')
.attr('width', svgWidth)
.attr('height', svgHeight);
const yScale = d3.scaleLinear()
.domain([0, 5000])
.range([svgHeight - svgMargin, svgMargin]);
const xScale = d3.scaleLinear()
.domain([2012, 2020])
.range([svgMargin, svgWidth - svgMargin]);
const yAxis = d3.axisLeft(yScale)
.ticks(6, '~s');
const xAxis = d3.axisBottom(xScale)
.tickFormat(d3.format(''))
.tickPadding(10);
lineGraph.append('g')
.call(yAxis)
.attr('transform', `translate(${svgMargin}, 0)` )
.style('font', '10px verdana');
lineGraph.append('g')
.call(xAxis)
.attr('transform', `translate(0, ${svgHeight - svgMargin})` )
.selectAll('text')
.style('transform', 'translate(-12px, 0) rotate(-50deg)')
.style('text-anchor', 'end')
.style('cursor', 'pointer')
.style('font', '10px verdana')
const twitterLine = d3.line()
.x(d => xScale(d.year))
.y(d => yScale(d.followers.twitter));
lineGraph.append('path')
.attr('d', twitterLine(data))
.attr('stroke', twitterColor)
.attr('stroke-width', 3)
.attr('fill', 'transparent');
const tumblrLine = d3.line()
.x(d => xScale(d.year))
< / script >
```
2020-11-27 19:02:05 +01:00
# --solutions--
2020-02-25 22:53:07 -06:00
```html
< script >
const data = [
{ year: 2012, followers: { twitter: 2594, tumblr: 401, instagram: 83 }},
{ year: 2013, followers: { twitter: 3049, tumblr: 440, instagram: 192 }},
{ year: 2014, followers: { twitter: 3511, tumblr: 415, instagram: 511 }},
{ year: 2015, followers: { twitter: 3619, tumblr: 492, instagram: 1014 }},
{ year: 2016, followers: { twitter: 4046, tumblr: 543, instagram: 2066 }},
{ year: 2017, followers: { twitter: 3991, tumblr: 701, instagram: 3032 }},
{ year: 2018, followers: { twitter: 3512, tumblr: 1522, instagram: 4512 }},
{ year: 2019, followers: { twitter: 3274, tumblr: 1989, instagram: 4715 }},
{ year: 2020, followers: { twitter: 2845, tumblr: 2040, instagram: 4801 }}
];
< / script >
< script >
const svgMargin = 70,
svgWidth = 700,
svgHeight = 500,
twitterColor = '#7cd9d1 ',
tumblrColor = '#f6dd71 ',
instagramColor = '#fd9b98 ';
const lineGraph = d3.select('.dashboard')
.append('svg')
.attr('width', svgWidth)
.attr('height', svgHeight);
const yScale = d3.scaleLinear()
.domain([0, 5000])
.range([svgHeight - svgMargin, svgMargin]);
const xScale = d3.scaleLinear()
.domain([2012, 2020])
.range([svgMargin, svgWidth - svgMargin]);
const yAxis = d3.axisLeft(yScale)
.ticks(6, '~s');
const xAxis = d3.axisBottom(xScale)
.tickFormat(d3.format(''))
.tickPadding(10);
lineGraph.append('g')
.call(yAxis)
.attr('transform', `translate(${svgMargin}, 0)` )
.style('font', '10px verdana');
lineGraph.append('g')
.call(xAxis)
.attr('transform', `translate(0, ${svgHeight - svgMargin})` )
.selectAll('text')
.style('transform', 'translate(-12px, 0) rotate(-50deg)')
.style('text-anchor', 'end')
.style('cursor', 'pointer')
.style('font', '10px verdana')
const twitterLine = d3.line()
.x(d => xScale(d.year))
.y(d => yScale(d.followers.twitter));
lineGraph.append('path')
.attr('d', twitterLine(data))
.attr('stroke', twitterColor)
.attr('stroke-width', 3)
.attr('fill', 'transparent');
const tumblrLine = d3.line()
.x(d => xScale(d.year))
.y(d => yScale(d.followers.tumblr));
< / script >
```
