Learning D3.JS 5.0 4.4: The append() Method

The video tutorial introduces the event method, explaining its role in adding elements after selection. It demonstrates using the append function to create and append elements to the current selection, such as the body tag. The concept of chain methods is introduced, highlighting their utility in calling functions sequentially. The session concludes with a recap and a preview of the next video, which will cover modifying elements.

What is the primary purpose of the event method in D3.js?

• To remove elements from a selection

• To add elements to a selection

• To style elements

• To animate elements

What does the append function do in D3.js?

• It creates and appends an element to the current selection

• It logs the current selection to the console

• It removes an element from the DOM

• It changes the style of an element

How does D3.js display elements in the console after using the append function?

• It shows the entire body

• It shows only the newly appended element

• It shows a list of all elements

• It shows the HTML structure

What is method chaining in D3.js?

• Creating a loop of functions

• Calling multiple functions in a single line

• Using a single function repeatedly

• Combining two different libraries

What topic will be covered in the next video after method chaining?

• Removing elements

• Styling elements

• Modifying elements

• Creating new elements