Home Backend Development Golang Golang browser compatibility and best practices

Golang browser compatibility and best practices

Apr 07, 2024 pm 02:12 PM
go golang Browser

Summary: Go uses Wasm to run code in the browser, support depends on browser version. For browser compatibility, check for WebAssembly support, and for performance optimization, use non-blocking I/O, minimized DOM operations, cached resources, and Web Workers. Practical examples demonstrate the process of creating interactive web pages using Go.

Golang 浏览器的兼容性和最佳实践

Golang Browser Compatibility and Best Practices

In today’s connected world, make sure your Go applications Smooth operation in different browsers is crucial. This article explores Go browser compatibility and best practices to help you build compatible, high-performance web applications.

Compatibility

Go uses WebAssembly (Wasm) to run code in the browser. While most modern browsers support Wasm, not all browsers support it in the same way.

Determine browser support

To determine if the browser supports Wasm, you can use the following code:

import (
    "syscall/js"
)

func main() {
    js.Global().Get("WebAssembly").Call("instantiate") // 尝试实例化一个 Wasm 模块
}
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If the browser supports Wasm, the code No error will be thrown. Otherwise, an error will be thrown.

Optimize performance

Here are some best practices for optimizing the performance of your Go application in the browser:

  • Use Non-blocking I/O: Go’s packages channel, goroutine and sync.Mutex are used to write concurrent and non-blocking code. Use them to prevent your application from hanging, thereby increasing responsiveness.
  • Minimize DOM operations: Frequent DOM operations will slow down the application. Use virtual DOM or similar technology where possible to reduce rendering times.
  • Cache resources: Cache static resources to reduce the number of HTTP requests by specifying cache headers. This can improve page loading speed.
  • Using Web Workers: Web Workers are JavaScript scripts that can run in a separate thread. They can be used to perform time-consuming tasks, thereby increasing responsiveness.

Practical Case

The following is a simple example of a Go application that creates interactive web pages in the browser:

main.go

package main

import (
    "syscall/js"
)

func main() {
    document := js.Global().Get("document")
    button := document.Call("createElement", "button")
    button.Set("innerHTML", "点击我")
    button.Set("onclick", js.FuncOf(func(this js.Value, args []js.Value) interface{} {
        document.Call("write", "按钮被点击了!")
        return nil
    }))
    document.Get("body").Call("appendChild", button)
}
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index.html

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>Go WebApp</title>
    <script src="main.wasm"></script>
</head>
<body>
</body>
</html>
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To run this example, compile the main.go file using the Go command:

go build -o main.wasm main.go
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Then, open the index.html file in a browser that supports Wasm.

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