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connorjclarkconnorjclark
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Add go-wasm
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‎.prettierignore‎

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LICENSE
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# this file is auto generated
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index.html
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wasm_exec.js
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# auto generated by esbuild
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minified-with-source-maps/bundle.js
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# auto generated by terser

‎go-wasm/Makefile‎

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build:
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GOOS=js GOARCH=wasm tinygo build -o main.wasm ./main.go
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cp $(shell tinygo env TINYGOROOT)/targets/wasm_exec.js .

‎go-wasm/README.md‎

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Adapted from https://tinygo.org/docs/guides/webassembly/wasm/

‎go-wasm/index.html‎

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<html>
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<head>
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<meta charset="utf-8"/>
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<script src="wasm_exec.js"></script>
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<script>
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const go = new Go();
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WebAssembly.instantiateStreaming(fetch("main.wasm"), go.importObject).then((result) => {
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go.run(result.instance);
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});
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</script>
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</head>
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<body>
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Check the console :)
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To configure what Fibonacci to calculate, set the query param: "?n=30"
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</body>
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</html>

‎go-wasm/main.go‎

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package main
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import (
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"fmt"
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"strconv"
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"syscall/js"
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"time"
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)
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// recursiveFib calculates the Nth Fibonacci number using direct recursion.
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// This function has exponential time complexity.
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func recursiveFib(n int) int {
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if n <= 1 {
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return n
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}
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return recursiveFib(n-1) + recursiveFib(n-2)
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}
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func main() {
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// Default to 35
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n := 35
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window := js.Global()
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location := window.Get("location")
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searchParams := window.Get("URLSearchParams").New(location.Get("search"))
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nParam := searchParams.Call("get", "n")
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if nParam.Type() == js.TypeString && nParam.String() != "" {
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parsed, err := strconv.Atoi(nParam.String())
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if err == nil {
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n = parsed
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}
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}
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fmt.Printf("Calculating Fibonacci(%d)...\n", n)
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start := time.Now()
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result := recursiveFib(n)
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elapsed := time.Since(start)
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fmt.Printf("Result: %d\n", result)
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fmt.Printf("Time taken: %s\n", elapsed)
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}

‎go-wasm/main.wasm‎

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