opt.Optional[T]

README.md

@@ -9,3 +9,40 @@ In other programming languages, an **optional-type** might be know as: a **optio
 Online documentation, which includes examples, can be found at: http://godoc.org/github.com/reiver/go-opt
 
 [![GoDoc](https://godoc.org/github.com/reiver/go-opt?status.svg)](https://godoc.org/github.com/reiver/go-opt)
+
+## Examples
+
+Here is an example **optional-type** that can hold a string:
+```go
+var op opt.Optional[string] // the default value is nothing.
+
+// ...
+
+if opt.Nothing[string]() == op {
+	fmt.Println("nothing")
+}
+
+// ...
+
+switch op {
+case op.Nothing[string]():
+	//@TODO
+case op.Something("apple"):
+	//@TODO
+case op.Something("banana"):
+	//@TODO
+case op.Something("cherry"):
+	//@TODO
+default:
+	//@TODO
+}
+
+// ...
+
+value, found := op.Get()
+if {
+	fmt.Println("VALUE:", value)
+} else {
+	fmt.Println("nothing")
+}
+```