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solution Add Inline Styling to Elements (#27240)

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added full guide page for Data Visualization with D3: Add Inline Styling to Elements
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Bannon Tanner
2019-03-21 10:56:11 -05:00
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guide/english/certifications/data-visualization/data-visualization-with-d3/add-inline-styling-to-elements/index.md
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@ -3,8 +3,69 @@ title: Add Inline Styling to Elements
---
## Add Inline Styling to Elements
This is a stub. <a href='https://github.com/freecodecamp/guides/tree/master/src/pages/certifications/data-visualization/data-visualization-with-d3/add-inline-styling-to-elements/index.md' target='_blank' rel='nofollow'>Help our community expand it</a>.
![:triangular_flag_on_post:](https://forum.freecodecamp.com/images/emoji/emoji_one/triangular_flag_on_post.png?v=3 ":triangular_flag_on_post:") Remember to use <a>**`Read-Search-Ask`**</a> if you get stuck. Try to pair program ![:busts_in_silhouette:](https://forum.freecodecamp.com/images/emoji/emoji_one/busts_in_silhouette.png?v=3 ":busts_in_silhouette:") and write your own code ![:pencil:](https://forum.freecodecamp.com/images/emoji/emoji_one/pencil.png?v=3 ":pencil:")
<a href='https://github.com/freecodecamp/guides/blob/master/README.md' target='_blank' rel='nofollow'>This quick style guide will help ensure your pull request gets accepted</a>.
### Problem Explanation:
This challenge introduces the D3 `style` method, which takes 2 arguments: (key, value).
#### Relevant Links
* [style](https://github.com/d3/d3-selection/blob/master/README.md#selection_style)
## ![:speech_balloon:](https://forum.freecodecamp.com/images/emoji/emoji_one/speech_balloon.png?v=3 ":speech_balloon:") Hint: 1
* Make sure both of your arguments are in quotations, single or double quotes will work
> _try to solve the problem now_
## ![:speech_balloon:](https://forum.freecodecamp.com/images/emoji/emoji_one/speech_balloon.png?v=3 ":speech_balloon:") Hint: 2
* In the example, `selection.style` refers to an arbitrary selected element, chain your `style` method to the existing method chain
> _try to solve the problem now_
## Spoiler Alert!
**Solution ahead!**
## ![:beginner:](https://forum.freecodecamp.com/images/emoji/emoji_one/beginner.png?v=3 ":beginner:") Basic Code Solution:
```javascript
<body>
<script>
const dataset = [12, 31, 22, 17, 25, 18, 29, 14, 9];
d3.select("body").selectAll("h2")
.data(dataset)
.enter()
.append("h2")
.text((d) => (d + " USD"))
.style('font-family', 'verdana')
</script>
</body>
```
# Code Explanation:
* the `style` method takes 2 arguments, the first is the key and the second the value
* key in the `style` method is the property name that you would use in a CSS declaration
* value is used just as a value would be used in a CSS declaration
* Since we are in JavaScript and `style` is a method we are calling, quotes must be used for the arguments. Otherwise, the function would try to use the value of the **variables** `font-family` and `verdana`, which do not exist and would each throw a ReferenceError
#### Relevant Links
* [style](https://github.com/d3/d3-selection/blob/master/README.md#selection_style)
* [ReferenceError](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Errors/Not_defined)
## ![:clipboard:](https://forum.freecodecamp.com/images/emoji/emoji_one/clipboard.png?v=3 ":clipboard:") NOTES FOR CONTRIBUTIONS:
* ![:warning:](https://forum.freecodecamp.com/images/emoji/emoji_one/warning.png?v=3 ":warning:") **DO NOT** add solutions that are similar to any existing solutions. If you think it is **_similar but better_**, then try to merge (or replace) the existing similar solution.
* Add an explanation of your solution.
* Categorize the solution in one of the following categories — **Basic**, **Intermediate** and **Advanced**. ![:traffic_light:](https://forum.freecodecamp.com/images/emoji/emoji_one/traffic_light.png?v=3 ":traffic_light:")
* Please add your username only if you have added any **relevant main contents**. (![:warning:](https://forum.freecodecamp.com/images/emoji/emoji_one/warning.png?v=3 ":warning:") **_DO NOT_** _remove any existing usernames_)
> See ![:point_right:](https://forum.freecodecamp.com/images/emoji/emoji_one/point_right.png?v=3 ":point_right:") <a href='http://forum.freecodecamp.com/t/algorithm-article-template/14272' target='_blank' rel='nofollow'>**`Wiki Challenge Solution Template`**</a> for reference.
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