Using channels and the select statement

Go channels, in combination with goroutines, are first-class citizens for asynchronous communication. Channels become especially powerful when using select statements. These statements allow a goroutine to intelligently handle requests from multiple channels at once.

Getting ready

Configure your environment according to these steps:

1. Download and install Go on your operating system from https://golang.org/doc/install and configure your GOPATH environment variable.
2. Open a terminal/console application.
3. Navigate to GOPATH/src and create a project directory, such as $GOPATH/src/github.com/yourusername/customrepo.

All code will be run and modified from this directory.

4. Optionally, install the latest tested version of the code using the go get github.com/agtorre/go-cookbook/ command.

How to do it...

These steps cover writing and running your application:

1. From your terminal/console application, create the chapter9/channels directory and navigate to it.
2. Copy tests from...