Reading and Writing
Explore how Go uses io.Reader and io.Writer interfaces for flexible reading and writing operations across files, buffers, streams, and network connections. Understand how this consistent approach enhances code reusability and generic programming.
We'll cover the following...
Introduction
Reading and writing are universal activities in software: reading and writing files comes to mind first, whereas reading and writing to buffers (e.g., to slices of bytes or to strings), and to the standard input, output, and error streams, network connections, pipes, and so on (or to our custom types) comes second. To make the codebase as generic as possible, Go takes a consistent approach to reading and writing data.
The package io provides us with the interfaces for reading and writing, io.Reader and ...