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Nicholas Carrigan (he/him) b36cdbafd1 chore: rename "part" to "step" (#43934 )

* chore: rename part to step

* chore: update metas

* chore: more renaming

* chore: update tooling

* chore: update frontmatter

* chore(tools): title testing

2021-10-21 18:07:52 +01:00

9.8 KiB

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id, title, challengeType, dashedName

id	title	challengeType	dashedName
5d8a4cfbe6b6180ed9a1ca48	Step 105	0	step-105

--description--

In the function you just created, create a const named values. Use the d3.values function to get the values of the 2020 followers and set the result to your values variable. Here's how to get the values:

d3.values(data[8].followers)

It will be an array with the values of the followers for the three platforms in 2020.

Note that this "d function" has curly brackets. So you could console.log(values) in there to see it's value.

--hints--

test-text

assert(
  /const\s*values\s*=\s*d3\s*\.\s*values\s*\(\s*data\s*\[\s*8\s*\]\s*\.\s*followers\s*\);?/g.test(
    code
  )
);

--seed--

--before-user-code--

<!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--

<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)

  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 => {



    })
</script>

--solutions--

<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)

  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);


    })
</script>

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