# Introduction Welcome Gophers to this new chapter. In this chapter, we will learn about the basic usage of dictionaries (maps) and analyze the presence of `nil` in Go. After completing this chapter, I believe you will be able to apply dictionaries to your daily development tasks. **Knowledge Points:** - Declaring a dictionary - Initializing a dictionary - Adding, deleting, updating, and searching for dictionary elements - Checking if a dictionary element exists - Iterating over a dictionary
Click the virtual machine below to start practicing