// companion site · Go by example

Working code for The Go Programming Language.

Nine chapters from Donovan & Kernighan, rebuilt as runnable programs — from goroutines and channels to server-rendered graphics. Read the chapter, then run the demo.

Browse chapters See the demos
9
book chapters, rebuilt as code
5
live server-rendered demos
Go
one language, front to back

Interactive demos

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Lissajous ch.1 · GIF
Lissajous
Animated Lissajous curves.
Sinc ch.3 · SVG
Sinc
3-D sinc surface, scalable SVG.
Egg ch.3 · SVG
Egg
Parametric egg surface.
Valley ch.3 · SVG
Valley
Saddle / valley surface plot.
Squares ch.3 · SVG
Squares
Tiled squares surface.