Go 1.11 is released - The Go Blog
Go 1.11 Release Notes - The Go Programming Language
"Go 1.11 adds an experimental port to WebAssembly (js/wasm).
... new GOOS value "js" and GOARCH value "wasm"
Go 1.11 adds preliminary support for a new concept called “modules,” an alternative to GOPATH with integrated support for versioning and package distribution. Using modules, developers are no longer confined to working inside GOPATH, version dependency information is explicit yet lightweight, and builds are more reliable and reproducible."
WebAssembly · golang/go Wiki · GitHub
Go WebAssembly Tutorial - Building a Calculator - YouTube
(LondonGophers 15/08/2018: Johan Brandhorst - Get Going with WebAssembly - YouTube