Example code for Chapter 2.3 from "Build Web Application with Golang" Purpose: Creating a basic function.

As of Google go 1.1.2, `println()` and `print()` are hidden functions included from the runtime package.

Example code for Chapter 2.3 from "Build Web Application with Golang" Purpose: Shows different ways of importing a package.

Example code for Chapter 2.3 from "Build Web Application with Golang" Purpose: Showing how to use `panic()` and `recover()`.

Example code for Chapter 2.3 from "Build Web Application with Golang" Purpose: Shows passing a variable by value and reference.

Example code for Chapter 2.3 from "Build Web Application with Golang" Purpose: Shows how to define a function type.

Example code for Chapter 2.3 from "Build Web Application with Golang" Purpose: Shows how to return multiple values from a function.