diff --git a/WebAssembly.md b/WebAssembly.md
index 36a95f32..1d360d27 100644
--- a/WebAssembly.md
+++ b/WebAssembly.md
@@ -17,65 +17,62 @@ compile: unknown architecture "wasm"
# Example
-To compile the basic Go program for the web:
+To compile a basic Go package for the web:
```go
package main
+import "fmt"
+
func main() {
- println("Hello, WebAssembly!")
+ fmt.Println("Hello, WebAssembly!")
}
```
Run:
```sh
-$ GOOS=js GOARCH=wasm go build -o test.wasm main.go
+$ GOOS=js GOARCH=wasm go build -o main.wasm
```
-And copy over the HTML & JS support files:
+Create an `index.html` file:
+
+```HTML
+
+
+
+
+
+
+
+
+
+```
+
+And copy over the JavaScript support file:
```sh
-$ cp $(go env GOROOT)/misc/wasm/wasm_exec.{html,js} .
+$ cp $(go env GOROOT)/misc/wasm/wasm_exec.js .
```
-Then serve those three files (`wasm_exec.html`, `wasm_exec.js`, and `test.wasm`) to a web browser.
+Then serve those three files (`index.html`, `wasm_exec.js`, and `main.wasm`) to a web browser. For example, with [`goexec`](https://github.com/shurcooL/goexec#goexec):
-For a basic HTTP server:
-
-```go
-package main
-
-import (
- "flag"
- "log"
- "net/http"
- "strings"
-)
-
-var (
- listen = flag.String("listen", ":8080", "listen address")
- dir = flag.String("dir", ".", "directory to serve")
-)
-
-func main() {
- flag.Parse()
- log.Printf("listening on %q...", *listen)
- log.Fatal(http.ListenAndServe(*listen, http.HandlerFunc(func(resp http.ResponseWriter, req *http.Request) {
- if strings.HasSuffix(req.URL.Path, ".wasm") {
- resp.Header().Set("content-type", "application/wasm")
- }
-
- http.FileServer(http.Dir(*dir)).ServeHTTP(resp, req)
- })))
-}
+```sh
+$ goexec 'http.ListenAndServe(":8080", http.FileServer(http.Dir(".")))'
```
-Now navigate to http://localhost:8080/wasm_exec.html, click "Run", and you should see the output in the JavaScript debug console.
+(Or use your own [basic HTTP server command](https://play.golang.org/p/pZ1f5pICVbV).)
+
+Finally, navigate to http://localhost:8080/index.html, open the JavaScript debug console, and you should see the output. You can modify the program, rebuild `main.wasm`, and refresh to see new output.
# Interacting with the DOM
-See https://tip.golang.org/pkg/syscall/js/
+See https://godoc.org/syscall/js.
# Debugging