Learn how to find the index of an element in a Go slice using loops and the slices.Index function from Go 1.21+.
Learn how to get file size and modification time information in Go using os.Stat and FileInfo.
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.