Learn how to handle and parse HTTP query parameters in Go using r.URL.Query().
How to iterate over a map in sorted order by extracting and sorting keys in Go.
Learn how to list files and directories in Go using os.ReadDir with detailed information.
Learn how to make HTTP requests with custom headers in Go using http.NewRequest and http.Client.
Learn how to transform each element in a Go slice using a map operation.
How to merge two maps together in Go using loops or the maps.Copy function.
How to properly check for nil values in Go and understand the interface nil gotcha.
Understanding when to use pointer receivers versus value receivers for struct methods in Go.
Learn how to read and write files in Go using os.ReadFile and os.WriteFile, the modern Go 1.16+ approach.
Learn how to perform regular expression matching in Go using the regexp package with MatchString, MustCompile, …