practice-golang / hello-wasm

Practice go/misc/wasm

Taste WASM

First

• Compile and Run server/server.go
• Open localhost:80 in web browser
• Open Developer console in web browser

Dir

wasm

• hello: Just Println
• function: Use func

Simple server

• server: server for wasm

My preference

vscode

"go.toolsEnvVars": {
    "GOARCH": "wasm",
    "GOOS": "js",
    "GOBIN": "${workspaceFolder}/bin"
}

Requirement to use tinygo

• Go >= 1.18 which support latest tinygo - https://go.dev/dl
• Tinygo - https://jawabsoal.live/baca-https-github.com/tinygo-org/tinygo/releases
• LLVM, MinGW - https://github.com/brechtsanders/winlibs_mingw/releases
• Binaryen (Need only wasm-opt.exe) - https://github.com/WebAssembly/binaryen/releases
• wasm_exec_tinygo.js
  • Not compatible with {go_root}/misc/wasm_exec.js so, have to use {tinygo_root}/targets/wasm_exec.js
  • wasm_exec_tinygo.js:313 - Because of syscall/js.finalizeRef, commented out