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---
id: 5d8a4cfbe6b6180ed9a1ca67
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title: Step 136
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challengeType: 0
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dashedName: step-136
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---
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# --description--
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Finally! You have all the elements displayed and they look good. The last thing you will do is make it so you can see the data from whatever year you want.
Wrap all the code in the script you've been working with in a function named `drawDashboard` and give it a parameter named `year` . Then, at the bottom of the script, call the function you created and pass it the number `2020` .
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# --hints--
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test-text
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```js
assert(
typeof drawDashboard === 'function' & &
/< \/script > \s*<script> \s*function \s*drawDashboard \s* \(\s*year \s* \)\s* \{/g.test(
code
) & &
/\}\s*drawDashboard\s*\(\s*2020\s*\)\s*;?\s*< \/script > \s*$/g.test(code)
);
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```
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# --seed--
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## --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--
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```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));
lineGraph.append('path')
.attr('d', tumblrLine(data))
.attr('stroke', tumblrColor)
.attr('stroke-width', 3)
.attr('fill', 'transparent');
const instagramLine = d3.line()
.x(d => xScale(d.year))
.y(d => yScale(d.followers.instagram));
lineGraph.append('path')
.attr('d', instagramLine(data))
.attr('stroke', instagramColor)
.attr('stroke-width', 3)
.attr('fill', 'transparent');
lineGraph.selectAll('twitter-circles')
.data(data)
.enter()
.append('circle')
.attr('cx', d => xScale(d.year))
.attr('cy', d => yScale(d.followers.twitter))
.attr('r', 6)
.attr('fill', 'white')
.attr('stroke', twitterColor)
.style('cursor', 'pointer')
lineGraph.selectAll('tumblr-circles')
.data(data)
.enter()
.append('circle')
.attr('cx', d => xScale(d.year))
.attr('cy', d => yScale(d.followers.tumblr))
.attr('r', 6)
.attr('fill', 'white')
.attr('stroke', tumblrColor)
.style('cursor', 'pointer')
lineGraph.selectAll('instagram-circles')
.data(data)
.enter()
.append('circle')
.attr('cx', d => xScale(d.year))
.attr('cy', d => yScale(d.followers.instagram))
.attr('r', 6)
.attr('fill', 'white')
.attr('stroke', instagramColor)
.style('cursor', 'pointer')
const rightDashboard = d3.select('.dashboard')
.append('div');
const pieGraph = rightDashboard.append('svg')
.attr('width', 200)
.attr('height', 200)
.style('position', 'relative')
.style('left', '20px');
const pieArc = d3.arc()
.outerRadius(100)
.innerRadius(0);
const pieColors = d3.scaleOrdinal()
.domain(data[8].followers)
.range([twitterColor, tumblrColor, instagramColor]);
const pie = d3.pie()
.value(d => d.value);
const pieGraphData = pieGraph.selectAll('pieSlices')
.data(pie(d3.entries(data[8].followers)))
.enter()
.append('g')
.attr('transform', 'translate(100, 100)');
pieGraphData.append('path')
.attr('d', pieArc)
.attr('fill', d => pieColors(d.data.key))
.attr('stroke', 'white')
.attr('stroke-width', 2);
pieGraphData.append('text')
.text(d => {
const values = d3.values(data[8].followers);
const sum = d3.sum(values);
const percent = d.data.value/sum;
return `${ Math.round(percent*100) }%` ;
})
.attr('transform', d => `translate(${pieArc.centroid(d)})` )
.style('text-anchor', 'middle')
.style('font', '10px verdana');
const legend = rightDashboard.append('table')
.attr('width', 200)
.attr('height', 120)
.style('font', '12px verdana')
.style('position', 'relative')
.style('top', '30px');
const legendTitle = legend.append('thead')
.append('tr')
.append('th')
.text('2020 followers')
.attr('colspan', 3)
.style('position', 'relative')
.style('left', '20px');
const legendRows = legend.append('tbody')
.selectAll('tr')
.data(d3.entries(data[8].followers))
.enter()
.append('tr');
legendRows.append('td')
.text(d => d.key)
.attr('align', 'right');
legendRows.append('td')
.attr('align', 'center')
.append('div')
.style('width', '16px')
.style('height', '16px')
.style('background-color', d => pieColors(d.key))
legendRows.append('td')
.text(d => d.value)
.attr('align', 'left');
< / script >
```
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# --solutions--
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```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 >
function drawDashboard(year) {
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));
lineGraph.append('path')
.attr('d', tumblrLine(data))
.attr('stroke', tumblrColor)
.attr('stroke-width', 3)
.attr('fill', 'transparent');
const instagramLine = d3.line()
.x(d => xScale(d.year))
.y(d => yScale(d.followers.instagram));
lineGraph.append('path')
.attr('d', instagramLine(data))
.attr('stroke', instagramColor)
.attr('stroke-width', 3)
.attr('fill', 'transparent');
lineGraph.selectAll('twitter-circles')
.data(data)
.enter()
.append('circle')
.attr('cx', d => xScale(d.year))
.attr('cy', d => yScale(d.followers.twitter))
.attr('r', 6)
.attr('fill', 'white')
.attr('stroke', twitterColor)
.style('cursor', 'pointer')
lineGraph.selectAll('tumblr-circles')
.data(data)
.enter()
.append('circle')
.attr('cx', d => xScale(d.year))
.attr('cy', d => yScale(d.followers.tumblr))
.attr('r', 6)
.attr('fill', 'white')
.attr('stroke', tumblrColor)
.style('cursor', 'pointer')
lineGraph.selectAll('instagram-circles')
.data(data)
.enter()
.append('circle')
.attr('cx', d => xScale(d.year))
.attr('cy', d => yScale(d.followers.instagram))
.attr('r', 6)
.attr('fill', 'white')
.attr('stroke', instagramColor)
.style('cursor', 'pointer')
const rightDashboard = d3.select('.dashboard')
.append('div');
const pieGraph = rightDashboard.append('svg')
.attr('width', 200)
.attr('height', 200)
.style('position', 'relative')
.style('left', '20px');
const pieArc = d3.arc()
.outerRadius(100)
.innerRadius(0);
const pieColors = d3.scaleOrdinal()
.domain(data[8].followers)
.range([twitterColor, tumblrColor, instagramColor]);
const pie = d3.pie()
.value(d => d.value);
const pieGraphData = pieGraph.selectAll('pieSlices')
.data(pie(d3.entries(data[8].followers)))
.enter()
.append('g')
.attr('transform', 'translate(100, 100)');
pieGraphData.append('path')
.attr('d', pieArc)
.attr('fill', d => pieColors(d.data.key))
.attr('stroke', 'white')
.attr('stroke-width', 2);
pieGraphData.append('text')
.text(d => {
const values = d3.values(data[8].followers);
const sum = d3.sum(values);
const percent = d.data.value/sum;
return `${ Math.round(percent*100) }%` ;
})
.attr('transform', d => `translate(${pieArc.centroid(d)})` )
.style('text-anchor', 'middle')
.style('font', '10px verdana');
const legend = rightDashboard.append('table')
.attr('width', 200)
.attr('height', 120)
.style('font', '12px verdana')
.style('position', 'relative')
.style('top', '30px');
const legendTitle = legend.append('thead')
.append('tr')
.append('th')
.text('2020 followers')
.attr('colspan', 3)
.style('position', 'relative')
.style('left', '20px');
const legendRows = legend.append('tbody')
.selectAll('tr')
.data(d3.entries(data[8].followers))
.enter()
.append('tr');
legendRows.append('td')
.text(d => d.key)
.attr('align', 'right');
legendRows.append('td')
.attr('align', 'center')
.append('div')
.style('width', '16px')
.style('height', '16px')
.style('background-color', d => pieColors(d.key))
legendRows.append('td')
.text(d => d.value)
.attr('align', 'left');
}
drawDashboard(2020);
< / script >
```
