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