http://imil.net/blog/tags/interface/ Recent content in Interface on iMil.net Hugo en-us Sun, 09 Dec 2018 11:10:32 +0000 http://imil.net/blog/posts/2018/golang-interfaces-a-pragmatic-explanation-for-the-programmer/ Sun, 09 Dec 2018 11:10:32 +0000 http://imil.net/blog/posts/2018/golang-interfaces-a-pragmatic-explanation-for-the-programmer/ <p>I&rsquo;m still in the process of learning <a href="https://golang.org/">golang</a> the right way. Yes I already wrote some projects with the <em>Go</em> language (<a href="https://gitlab.com/iMil/js2sh">here</a> and <a href="https://gitlab.com/iMil/collectd-ticker">here</a>), but I like to understand the real meaning of techniques when using them.<br> One of what is said to be the most amazing features of <em>Go</em> is <a href="https://tour.golang.org/methods/9">interfaces</a>. Here&rsquo;s what the official <a href="https://golang.org/doc/effective_go.html#interfaces">golang docs</a> has to say about it:</p> <blockquote> <p>Interfaces in Go provide a way to specify the behavior of an object: if something can do this, then it can be used here. We&rsquo;ve seen a couple of simple examples already; custom printers can be implemented by a String method while Fprintf can generate output to anything with a Write method. Interfaces with only one or two methods are common in Go code, and are usually given a name derived from the method, such as io.Writer for something that implements Write.</p>