Go WASM Toggle Visibility - Go-wasm Typing CST Test

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Go WASM Toggle Visibility — Go-wasm Code

Toggles the visibility of a paragraph when a button is clicked.

# go/demo/toggle.go
package main

import (
	"syscall/js"
)

func main() {
	doc := js.Global().Get("document")
	p := doc.Call("createElement", "p")
	p.Set("innerHTML", "Visible text")
	doc.Get("body").Call("appendChild", p)

	btn := doc.Call("createElement", "button")
	btn.Set("innerHTML", "Toggle")
	doc.Get("body").Call("appendChild", btn)

	visible := true
	btn.Call("addEventListener", "click", js.FuncOf(func(this js.Value, args []js.Value) interface{} {
		visible = !visible
		if visible {
		p.Set("style.display", "block")
		} else {
		p.Set("style.display", "none")
		}
		return nil
	}))

	select{}
}

Go-wasm Language Guide

Go-WASM refers to compiling Go (Golang) programs to WebAssembly, allowing Go code to run in the browser. It enables developers to leverage Go's concurrency model and standard library on the client-side, interacting with JavaScript and the DOM.

Primary Use Cases

▸Porting existing Go libraries to run in the browser
▸Computational-heavy browser tasks (e.g., data processing, simulations)
▸SPAs with Go backend logic mirrored on the client
▸Browser games leveraging Go routines
▸Replacing JavaScript for Go-centric full-stack applications

Notable Features

▸Compile Go code to WebAssembly for browser execution
▸Interoperability with JavaScript using `syscall/js`
▸Supports Go goroutines and channels (with some browser runtime constraints)
▸Leverages Go's standard library in the browser
▸Works with modern browsers supporting WebAssembly

Origin & Creator

Go-WASM is maintained by the Go project team at Google, introduced as part of Go 1.11 with WebAssembly as a supported compilation target.

Industrial Note

Go-WASM is ideal for Go developers who want to run Go code in the browser without rewriting logic in JavaScript or TypeScript, especially for apps needing Go's concurrency or existing Go code reuse.

More Go-wasm Typing Exercises

Simple Go WebAssembly Program Go WASM Button Click Go WASM Input Binding Go WASM Conditional Rendering Go WASM Loop Rendering Go WASM Timer Update Go WASM Event Callback Go WASM Fetch Example Go WASM Dynamic List

Practice Other Languages

C React Python C++Rust TypeScript Kotlin PHP Java C#Ruby Mql Cql N1ql Cypher

Go WASM Toggle Visibility — Go-wasm Code

Toggles the visibility of a paragraph when a button is clicked.

# go/demo/toggle.go package main import ( "syscall/js" ) func main() { doc := js.Global().Get("document") p := doc.Call("createElement", "p") p.Set("innerHTML", "Visible text") doc.Get("body").Call("appendChild", p) btn := doc.Call("createElement", "button") btn.Set("innerHTML", "Toggle") doc.Get("body").Call("appendChild", btn) visible := true btn.Call("addEventListener", "click", js.FuncOf(func(this js.Value, args []js.Value) interface{} { visible = !visible if visible { p.Set("style.display", "block") } else { p.Set("style.display", "none") } return nil })) select{} }

Go-wasm Language Guide

Primary Use Cases

▸Porting existing Go libraries to run in the browser
▸Computational-heavy browser tasks (e.g., data processing, simulations)
▸SPAs with Go backend logic mirrored on the client
▸Browser games leveraging Go routines
▸Replacing JavaScript for Go-centric full-stack applications

Notable Features

▸Compile Go code to WebAssembly for browser execution
▸Interoperability with JavaScript using `syscall/js`
▸Supports Go goroutines and channels (with some browser runtime constraints)
▸Leverages Go's standard library in the browser
▸Works with modern browsers supporting WebAssembly

Origin & Creator

Go-WASM is maintained by the Go project team at Google, introduced as part of Go 1.11 with WebAssembly as a supported compilation target.

Industrial Note

Go-WASM is ideal for Go developers who want to run Go code in the browser without rewriting logic in JavaScript or TypeScript, especially for apps needing Go's concurrency or existing Go code reuse.