Adding and deleting items from a Set

We will start out with the simplest possible tasks involving a Set. In this recipe, we'll take a look at how to add and delete items from a Set using the respective instance methods.

Getting ready

This recipe assumes that you already have a workspace that allows you to create and run ES modules in your browser. If you don't, refer to the first two chapters.

How to do it...

1. Open your command-line application, and navigate to your workspace.
2. Create a new folder named 12-01-add-remove-from-set.
3. Copy or create an index.html...