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Originally published on The Go Programming Language Blog, September 6, 2011. http://blog.golang.org/2011/09/laws-of-reflection.html Update #2547 R=golang-dev, r, adg CC=golang-dev https://golang.org/cl/5689054
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<!--{
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"Title": "Documentation",
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"Path": "/doc/"
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}-->
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<p>
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The Go programming language is an open source project to make programmers more
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productive.
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</p>
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<p>
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Go is expressive, concise, clean, and efficient. Its concurrency
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mechanisms make it easy to write programs that get the most out of multicore
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and networked machines, while its novel type system enables flexible and
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modular program construction. Go compiles quickly to machine code yet has the
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convenience of garbage collection and the power of run-time reflection. It's a
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fast, statically typed, compiled language that feels like a dynamically typed,
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interpreted language.
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</p>
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<div id="manual-nav"></div>
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<h2 id="learning">Learning Go</h2>
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<h3 id="go_tour"><a href="http://tour.golang.org/">A Tour of Go</a></h3>
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<p>
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An interactive introduction to Go in three sections.
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The first section covers basic syntax and data structures; the second discusses
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methods and interfaces; and the third introduces Go's concurrency primitives.
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Each section concludes with a few exercises so you can practice what you've
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learned. You can <a href="http://tour.golang.org/">take the tour online</a> or
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<a href="http://code.google.com/p/go-tour/">install it locally</a>.
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</p>
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<h3 id="effective_go"><a href="effective_go.html">Effective Go</a></h3>
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<p>
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A document that gives tips for writing clear, idiomatic Go code.
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A must read for any new Go programmer. It augments the tour and
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the language specification, both of which should be read first.
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</p>
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<h3 id="code"><a href="code.html">How to write Go code</a></h3>
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<p>
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How to write a new package and how to test code.
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</p>
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<h3 id="appengine"><a href="http://code.google.com/appengine/docs/go/gettingstarted/">Getting Started with Go on App Engine</a></h3>
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<p>
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How to develop and deploy a simple Go project with
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<a href="http://code.google.com/appengine/">Google App Engine</a>.
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</p>
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<h3 id="go_faq"><a href="go_faq.html">Frequently Asked Questions (FAQ)</a></h3>
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<p>
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Answers to common questions about Go.
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</p>
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<h3>Other introductory articles</h3>
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<ul>
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<li><a href="/doc/articles/wiki/">Writing Web Applications</a> -
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building a simple web application.</li>
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</ul>
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<h2 id="articles">Go Articles</h2>
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<h3>Codewalks</h3>
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<p>
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Guided tours of Go programs.
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</p>
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<ul>
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<li><a href="/doc/codewalk/functions">First-Class Functions in Go</a></li>
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<li><a href="/doc/codewalk/markov">Generating arbitrary text: a Markov chain algorithm</a></li>
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<li><a href="/doc/codewalk/sharemem">Share Memory by Communicating</a></li>
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</ul>
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<h3>Language</h3>
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<ul>
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<li><a href="http://blog.golang.org/2010/04/json-rpc-tale-of-interfaces.html">JSON-RPC: a tale of interfaces</a></li>
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<li><a href="http://blog.golang.org/2010/07/gos-declaration-syntax.html">Go's Declaration Syntax</a></li>
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<li><a href="/doc/articles/defer_panic_recover.html">Defer, Panic, and Recover</a></li>
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<li><a href="http://blog.golang.org/2010/09/go-concurrency-patterns-timing-out-and.html">Go Concurrency Patterns: Timing out, moving on</a></li>
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<li><a href="/doc/articles/slices_usage_and_internals.html">Go Slices: usage and internals</a></li>
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<li><a href="http://blog.golang.org/2011/05/gif-decoder-exercise-in-go-interfaces.html">A GIF decoder: an exercise in Go interfaces</a></li>
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<li><a href="/doc/articles/error_handling.html">Error Handling and Go</a></li>
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</ul>
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<h3>Packages</h3>
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<ul>
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<li><a href="http://blog.golang.org/2011/01/json-and-go.html">JSON and Go</a> - using the <a href="/pkg/encoding/json/">json</a> package.</li>
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<li><a href="http://blog.golang.org/2011/03/gobs-of-data.html">Gobs of data</a> - the design and use of the <a href="/pkg/encoding/gob/">gob</a> package.</li>
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<li><a href="/doc/articles/laws_of_reflection.html">The Laws of Reflection</a> - the fundamentals of the <a href="/pkg/reflect/">reflect</a> package.</li>
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<li><a href="http://blog.golang.org/2011/09/go-image-package.html">The Go image package</a> - the fundamentals of the <a href="/pkg/image/">image</a> package.</li>
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<li><a href="http://blog.golang.org/2011/09/go-imagedraw-package.html">The Go image/draw package</a> - the fundamentals of the <a href="/pkg/image/draw/">image/draw</a> package.</li>
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</ul>
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<h3>Tools</h3>
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<ul>
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<li><a href="http://blog.golang.org/2011/03/c-go-cgo.html">C? Go? Cgo!</a> - linking against C code with <a href="/cmd/cgo/">cgo</a>.</li>
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<li><a href="http://blog.golang.org/2011/03/godoc-documenting-go-code.html">Godoc: documenting Go code</a> - writing good documentation for <a href="/cmd/godoc/">godoc</a>.</li>
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<li><a href="http://blog.golang.org/2011/06/profiling-go-programs.html">Profiling Go Programs</a></li>
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</ul>
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<h2 id="videos_talks">Videos and Talks</h2>
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<h3 id="writing_web_apps"><a href="http://www.youtube.com/watch?v=-i0hat7pdpk">Writing Web Apps in Go</a></h3>
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<p>
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A talk by Rob Pike and Andrew Gerrand presented at Google I/O 2011.
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It walks through the construction and deployment of a simple web application
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and unveils the <a href="http://blog.golang.org/2011/05/go-and-google-app-engine.html">Go runtime for App Engine</a>.
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See the <a href="/doc/talks/io2011/Writing_Web_Apps_in_Go.pdf">presentation slides</a>.
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</p>
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<h3 id="real_world_go"><a href="http://www.youtube.com/watch?v=7QDVRowyUQA">Real World Go</a></h3>
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<p>
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A talk by Andrew Gerrand presented at Google I/O Bootcamp 2011.
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It gives a broad overview of Go's type system and concurrency model
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and provides four examples of Go programs that solve real problems.
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See the <a href="/doc/talks/io2011/Real_World_Go.pdf">presentation slides</a>.
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</p>
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<h3 id="go_programming"><a href="http://www.youtube.com/watch?v=jgVhBThJdXc">Go Programming</a></h3>
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<p>
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A presentation delivered by Rob Pike and Russ Cox at Google I/O 2010. It
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illustrates how programming in Go differs from other languages through a set of
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examples demonstrating features particular to Go. These include concurrency,
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embedded types, methods on any type, and program construction using interfaces.
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</p>
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<h3 id="practical_go_programming"><a href="http://www.youtube.com/watch?v=2-pPAvqyluI">Practical Go Programming</a></h3>
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<p>
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This talk presents the development of a complete web application in Go.
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It looks at design, storage, concurrency, and scaling issues in detail, using
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the simple example of an URL shortening service.
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See the <a href="http://wh3rd.net/practical-go/">presentation slides</a>.
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</p>
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<h3 id="techtalk"><a href="http://www.youtube.com/watch?v=rKnDgT73v8s">The Go Tech Talk</a></h3>
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<p>
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An hour-long talk delivered by Rob Pike at Google in October 2009.
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The language's first public introduction. (See the <a href="talks/go_talk-20091030.pdf">slides in PDF format</a>.) The language has changed since it was made,
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but it's still a good introduction.
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</p>
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<h3 id="jaoo_go"><a href="/doc/ExpressivenessOfGo.pdf">The Expressiveness Of Go</a></h3>
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<p>
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A discussion of the qualities that make Go an expressive and comprehensible
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language. The talk was presented by Rob Pike at JAOO 2010.
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The recording of the event was lost due to a hardware error.
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</p>
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<h3 id="oscon_go"><a href="http://www.oscon.com/oscon2010/public/schedule/detail/14760">Another Go at Language Design</a></h3>
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<p>
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A tour, with some background, of the major features of Go, intended for
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an audience new to the language. The talk was presented at OSCON 2010.
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See the <a href="http://assets.en.oreilly.com/1/event/45/Another%20Go%20at%20Language%20Design%20Presentation.pdf">presentation slides</a>.
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</p>
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<p>
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This talk was also delivered at Sydney University in September 2010. A video
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of the lecture is available
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<a href="http://sydney.edu.au/engineering/it/videos/seminar_pike">here</a>.
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</p>
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<h3 id="emerging_go"><a href="http://www.oscon.com/oscon2010/public/schedule/detail/15464">Go Emerging Languages Conference Talk</a></h3>
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<p>
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Rob Pike's Emerging Languages Conference presentation delivered in July 2010. See the <a href="http://assets.en.oreilly.com/1/event/45/Go%20Presentation.pdf">presentation slides</a>. Abstract:
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</p>
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<p><i>
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Go’s approach to concurrency differs from that of many languages, even those
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(such as Erlang) that make concurrency central, yet it has deep roots. The path
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from Hoare’s 1978 paper to Go provides insight into how and why Go works as it
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does.
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</i></p>
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<h3 id="go_frontend_gcc"><a href="talks/gofrontend-gcc-summit-2010.pdf">The Go frontend for GCC</a></h3>
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<p>
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A description of the Go language frontend for gcc.
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Ian Lance Taylor's paper delivered at the GCC Summit 2010.
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</p>
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<h3 id="promo_video"><a href="http://www.youtube.com/watch?v=wwoWei-GAPo">The Go Promo Video</a></h3>
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<p>
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A short promotional video featuring Russ Cox demonstrating Go's fast compiler.
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</p>
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<h2 id="developer_info">The Go Community</h2>
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<h3 id="mailinglist"><a href="http://groups.google.com/group/golang-nuts">Go Nuts Mailing List</a></h3>
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<p>The <a href="http://groups.google.com/group/golang-nuts">golang-nuts</a>
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mailing list is for general Go discussion.</p>
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<h3 id=""><a href="http://godashboard.appspot.com/package">Go Packages Dashboard</a></h3>
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<p>A list of the most popular <a href="/cmd/goinstall/">goinstall</a>'d
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Go libraries.</p>
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<h3 id=""><a href="http://godashboard.appspot.com/project">Go Project Dashboard</a></h3>
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<p>A list of external Go projects including programs and libraries.</p>
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<h3 id="irc"><a href="irc:irc.freenode.net/go-nuts">Go IRC Channel</a></h3>
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<p><b>#go-nuts</b> on <b>irc.freenode.net</b> is the official Go IRC channel.</p>
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<h3 id="twitter"><a href="http://twitter.com/go_nuts">@go_nuts at Twitter</a></h3>
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<p>The Go project's official Twitter account.</p>
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<h2 id="tutorials_nonenglish">Non-English Documentation</h2>
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<h4 id="docs_be">Belarusian — Беларуская</h4>
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<ul>
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<li><a href="http://www.designcontest.com/show/faq-be">faq-be</a> - Frequently Asked Questions.</li>
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</ul>
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<h4 id="docs_cn">Chinese — 中文</h4>
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<ul>
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<li><a href="http://go-tour-zh.appspot.com/">A Tour of Go</a></li>
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<li><a href="http://code.google.com/p/golang-china/">golang-china</a> - a broad range of Go documentation.</li>
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<li><a href="http://code.google.com/p/ac-me/downloads/detail?name=fango.pdf">Effective Go and (old) Tutorial</a></li>
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</ul>
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<h4 id="docs_cz">Czech — Čeština</h4>
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<ul>
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<li><a href="http://www.abclinuxu.cz/clanky/google-go-pravidla-reflexe">Pravidla reflexe</a> - a translation of <a href="http://blog.golang.org/2011/09/laws-of-reflection.html">The Laws of Reflection</a>.</li>
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</ul>
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<h4 id="docs_fr">French — Français</h4>
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<ul>
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<li>
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<a href="http://code.google.com/p/golang-france/">golang-france</a> - Go documentation.
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</ul>
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<h4 id="docs_de">German — Deutsch</h4>
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<ul>
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<li><a href="http://bitloeffel.de/DOC/golang/go_tutorial_de.html">Eine Anleitung zum Programmieren in Go</a> - the (old) Go Tutorial.</li>
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<li><a href="http://bitloeffel.de/DOC/golang/effective_go_de.html">Wirkungsvoll Go programmieren</a> - Effective Go.</li>
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<li><a href="http://bitloeffel.de/DOC/golang/code_de.html">Wie man Go-Kode schreibt</a> - How to Write Go Code.</li>
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</ul>
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<h4 id="docs_jp">Japanese — 日本語</h4>
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<ul>
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<li><a href="http://go-tour-jp.appspot.com/">A Tour of Go</a></li>
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<li><a href="http://golang.jp/">golang.jp</a> - Go documentation and news.</li>
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</ul>
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<h4 id="docs_kr">Korean — 한국어</h4>
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<ul>
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<li><a href="http://go-tour-kr.appspot.com">A Tour of Go</a></li>
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<li><a href="http://code.google.com/p/golang-korea">golang-korea</a> - Go documentation and news.</li>
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</ul>
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