Learn GO-WASM with Real Code Examples

Install Go (1.11 or later)

Enable WebAssembly target: `GOOS=js GOARCH=wasm`

Write Go code for client logic

Compile: `go build -o main.wasm`

Serve WASM file with HTML/JS loader to run in browser

Install Go 1.11+

Verify WASM target compilation

Include wasm_exec.js in HTML

Set up editor with Go extension

Test Go-WASM apps in modern browser

main.go - entry point

go.mod - dependency management

wasm_exec.js - Go runtime loader

index.html - host WASM app

static/ - CSS, images, JS assets

go build -o main.wasm - compile Go to WASM

go test - run unit tests

go mod tidy - clean dependencies

go run main.go - run Go program locally

serve static HTML/JS to test WASM app

Handled via Go strings and resources

Dynamic content through JS interop

External i18n libraries can be used

Compile-time or runtime translation possible

No built-in Go-WASM i18n support

Standard HTML and ARIA practices

Event-driven focus management

Keyboard navigation handled via JS interop

Screen reader support through semantic HTML

Accessibility depends on JS/HTML implementation

HTML and CSS directly via JS/DOM

Frameworks like Tailwind can be used

Dynamic class assignment via JS interop

Inline styling via DOM manipulation

No built-in UI framework in Go-WASM

Managed in Go variables and goroutines

Reactive updates via JS interop for UI

Shared state via channels or global structs

Event-driven updates from DOM callbacks

Persistent data via local storage API accessed through JS

Store state in Go structs or slices

Communicate with backend APIs via fetch/JS interop

Use JSON encoding/decoding

IndexedDB access via JS interop

Minimize global state for concurrency safety