123 lines
2.6 KiB
Markdown
123 lines
2.6 KiB
Markdown
---
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id: 587d7faa367417b2b2512bd3
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title: Style D3 Labels
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challengeType: 6
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forumTopicId: 301492
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---
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## Description
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<section id='description'>
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D3 methods can add styles to the bar labels. The <code>fill</code> attribute sets the color of the text for a <code>text</code> node. The <code>style()</code> method sets CSS rules for other styles, such as "font-family" or "font-size".
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</section>
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## Instructions
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<section id='instructions'>
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Set the <code>font-size</code> of the <code>text</code> elements to 25px, and the color of the text to red.
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</section>
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## Tests
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<section id='tests'>
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```yml
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tests:
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- text: The labels should all have a <code>fill</code> color of red.
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testString: assert($('text').css('fill') == 'rgb(255, 0, 0)');
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- text: The labels should all have a <code>font-size</code> of 25 pixels.
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testString: assert($('text').css('font-size') == '25px');
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```
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</section>
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## Challenge Seed
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<section id='challengeSeed'>
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<div id='html-seed'>
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```html
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<body>
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<script>
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const dataset = [12, 31, 22, 17, 25, 18, 29, 14, 9];
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const w = 500;
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const h = 100;
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const svg = d3.select("body")
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.append("svg")
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.attr("width", w)
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.attr("height", h);
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svg.selectAll("rect")
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.data(dataset)
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.enter()
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.append("rect")
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.attr("x", (d, i) => i * 30)
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.attr("y", (d, i) => h - 3 * d)
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.attr("width", 25)
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.attr("height", (d, i) => d * 3)
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.attr("fill", "navy");
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svg.selectAll("text")
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.data(dataset)
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.enter()
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.append("text")
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.text((d) => d)
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.attr("x", (d, i) => i * 30)
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.attr("y", (d, i) => h - (3 * d) - 3)
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// Add your code below this line
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// Add your code above this line
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</script>
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</body>
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```
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</div>
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</section>
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## Solution
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<section id='solution'>
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```html
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<body>
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<script>
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const dataset = [12, 31, 22, 17, 25, 18, 29, 14, 9];
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const w = 500;
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const h = 100;
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const svg = d3.select("body")
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.append("svg")
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.attr("width", w)
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.attr("height", h);
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svg.selectAll("rect")
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.data(dataset)
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.enter()
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.append("rect")
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.attr("x", (d, i) => i * 30)
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.attr("y", (d, i) => h - 3 * d)
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.attr("width", 25)
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.attr("height", (d, i) => d * 3)
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.attr("fill", "navy");
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svg.selectAll("text")
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.data(dataset)
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.enter()
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.append("text")
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.text((d) => d)
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.attr("x", (d, i) => i * 30)
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.attr("y", (d, i) => h - (3 * d) - 3)
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.style("font-size", 25)
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.attr("fill", "red")
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</script>
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</body>
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```
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</section>
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