What key functions and features of the Go language have you used in your projects?

Projects in Go often utilize the following key features and language characteristics:

• Goroutines for lightweight and efficient concurrency.
• Channels for safe data exchange between goroutines.
• Interfaces for abstraction and code flexibility.
• Error handling through return values, which enhances clarity and control.
• Packages and modularity for code organization.
• Strong typing and simple syntax, which facilitate maintenance.

Example of using a goroutine and a channel:

ch := make(chan string)
go func() {
    ch <- "Hello from goroutine"
}()
msg := <-ch
fmt.Println(msg)