feat: set js variable from golang

mukezhz · Dec 19, 2023 · b0d8630 · b0d8630
1 parent 387d5d5
commit b0d8630
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Showing 2 changed files with 7 additions and 1 deletion.
diff --git a/wasm/hello_world/assets/index.html b/wasm/hello_world/assets/index.html
@@ -6,7 +6,7 @@
     <title>WASM HELLO WORLD</title>
   </head>
   <body>
-    <h1>WebAssembly using GoLang</h1>
+    <h1>WebAssembly using :</h1>
     <script src="wasm_exec.js"></script>
     <script>
       async function run() {
@@ -16,6 +16,10 @@ <h1>WebAssembly using GoLang</h1>
           go.importObject
         );
         go.run(result.instance);
+
+        const heading = document.getElementsByTagName("h1")[0];
+        const originalText = heading.innerText;
+        heading.innerText = originalText + " " + window?.goLang;
       }
       run();
     </script>

diff --git a/wasm/hello_world/cmd/wasm/main.go b/wasm/hello_world/cmd/wasm/main.go
@@ -2,8 +2,10 @@ package main
 
 import (
 	"fmt"
+	"syscall/js"
 )
 
 func main() {
 	fmt.Println("Hello world from Go Web Assembly")
+	js.Global().Set("goLang", "Go Lang")
 }