Introduction to Visualization Using D3.js.png

In this course, you will learn the fundamentals of D3.js (stands for Data-Driven Documents), which is a JavaScript library mainly used for visualization.

In the first half of the course, you will cover DOM (Document Object Model) manipulation, method chaining, data binding, and data loading.

In the second half, you’ll cover visualization concepts and dive deep into SVG which is used to draw different geometrical shapes. After that, you’ll work with various maps and graphs in order to display your data. Lastly, you’ll learn about network visualization with the help of nodes and links.

By the end of this course, you will have a new, powerful data visualization library at your disposal.

Introduction to Visualization Using D3.js

Which of the following is the correct way to insert a `div` inside the `body` tag using D3 selection?

Which of the following is the correct way to insert a <code>div</code> inside the <code>body</code> tag using D3 selection?

It will change the color of all `p` tags to `red`.

It will change the color of the first `p` tag.

Suppose we have three `p` tags inside the `body` tag.
```html
<head>
	<script src="https://d3js.org/d3.v6.min.js"></script>
</head>
<body>
	 first paragraph
 second paragraph
 third paragraph
</body>
</html>
```
 What will happen if we run the following command?
```
d3.select("p").style("color","red")
```

Suppose we have three <code>p</code> tags inside the <code>body</code> tag.
<pre><code class="language-html">&lt;head&gt;
	&lt;script src=&quot;https://d3js.org/d3.v6.min.js&quot;&gt;&lt;/script&gt;
&lt;/head&gt;
&lt;body&gt;
	 &lt;p&gt;first paragraph&lt;/p&gt;
 &lt;p&gt;second paragraph&lt;/p&gt;
 &lt;p&gt;third paragraph&lt;/p&gt;
&lt;/body&gt;
&lt;/html&gt;
</code></pre>
What will happen if we run the following command?
<pre><code>d3.select(&quot;p&quot;).style(&quot;color&quot;,&quot;red&quot;)
</code></pre>

The following code will return an empty selection if the `p` tag is not present.
```
d3.select('p')
```

The following code will return an empty selection if the <code>p</code> tag is not present.
<pre><code>d3.select('p')
</code></pre>

Which of the following is not a function used in DOM manipulation?

Which of the following is not a function used in DOM manipulation?

Method chaining is the technique used in D3.js where we connect different methods with a period.

Method chaining is the technique used in D3.js where we connect different methods with a period.

Which of the following functions is used to connect a single data element with the selected DOM element?

Which of the following functions is used to connect a single data element with the selected DOM element?

Which method is used when the number of selected DOM elements is less than the number of elements in the data array?



Which method is used when the number of selected DOM elements is less than the number of elements in the data array?

Check your understanding of the concepts covered so far.

Introduction

D3.js Fundamentals

Scales

Drawing Basic Shapes

Chart Fundamentals

Network Visualization, Hierarchical Data, and Interactivity

Conclusion

Quiz on D3.js Fundamentals