Is a cancel button really needed in a form in a page?

1. What is the purpose of Cancel button?
2. Should cancel be a button or a link?
3. Which code generally written in cancel button?

What is the purpose of Cancel button?

In this article

A cancel button is clicked whenever the user presses the ESC key, regardless of which other control on the form has the focus. Such a button is usually programmed to enable the user to quickly exit an operation without committing to any action.

Should cancel be a button or a link?

To summarize

The cancel option is similar to aborting an action, and therefore similar to navigating back to the previous state of the UI. Navigation is represented in web UI as hyperlinks, and thus the cancel option should be a hyperlink.

Which code generally written in cancel button?

Pressing the ESC key has the same effect as clicking Cancel. Code 1: Coding the Cancel button on an message box - MsgBox function.