From 5c872efa5cb79b465810c6e610412ca8ddb155ce Mon Sep 17 00:00:00 2001
From: Dan Jones <danjones@goodevilgenius.org>
Date: Fri, 27 Dec 2024 16:19:59 -0600
Subject: [PATCH 1/2] =?UTF-8?q?=E2=9A=97=EF=B8=8F=20Testing=20out=20non-pr?=
 =?UTF-8?q?omise=20functions?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 internal/cmd/wasm/main.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/internal/cmd/wasm/main.go b/internal/cmd/wasm/main.go
index bff7177..907cf03 100644
--- a/internal/cmd/wasm/main.go
+++ b/internal/cmd/wasm/main.go
@@ -3,6 +3,7 @@ package main
 import (
 	"errors"
 	"fmt"
+	"strings"
 	"syscall/js"
 
 	promises "codeberg.org/danjones000/go-promises"
@@ -46,5 +47,9 @@ func main() {
 		return internal.GetUser(name.String(), age.Int()), nil
 	}))
 
+	js.Global().Get("String").Get("prototype").Set("toTitleCase", js.FuncOf(func(this js.Value, _ []js.Value) any {
+		return strings.Title(this.String())
+	}))
+
 	<-make(chan struct{})
 }

From d4cba7e99d4aaefccc2994da54ab82abc798d374 Mon Sep 17 00:00:00 2001
From: Dan Jones <danjones@goodevilgenius.org>
Date: Fri, 27 Dec 2024 16:20:31 -0600
Subject: [PATCH 2/2] =?UTF-8?q?=F0=9F=93=9D=20Add=20README?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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---
 README.md | 72 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 README.md

diff --git a/README.md b/README.md
new file mode 100644
index 0000000..3e44287
--- /dev/null
+++ b/README.md
@@ -0,0 +1,72 @@
+# go-promises
+
+Return promises from Go WASM.
+
+## Usage
+
+Write some go code, like this.
+
+```go
+import (
+    "syscall/js"
+
+    promises "codeberg.org/danjones000/go-promises"
+)
+
+func Add(a, b int) int {
+    return a + b
+}
+
+func AddWrapper() value.JSWrapper {
+    return func(this js.Value, args []js.Value) (any, error) {
+		if len(args) < 2 {
+			return nil, errors.New("add called with too few arguments")
+		}
+		a := args[0]
+		b := args[1]
+
+		if a.Type() != js.TypeNumber {
+			return nil, fmt.Errorf("First argument must be a number. %s given", a.Type())
+		}
+
+		if b.Type() != js.TypeNumber {
+			return nil, fmt.Errorf("secong argument must be a number. %s given", b.Type())
+		}
+
+        return Add(a.Int(), b.Int()), nil
+    }
+}
+
+func main() {
+    js.Global().Set("add", promises.PromisifyGoFunc(AddWrapper()))
+	<-make(chan struct{})
+}
+```
+
+Next, compile this code:
+
+```shell
+GOOS=js GOARCH=wasm go build -o ./app.wasm ./
+```
+
+Copy the `app.wasm` file, as well as the `wasm_exec.js` from your go installation, into wherever you have your web files located.
+
+```shell
+cp app.wasm "$(go env GOROOT)"/misc/wasm/wasm_exec.js path/to/web/
+```
+
+Finally, you'll need some frontend code like this:
+
+```javascript
+const go = new Go();
+WebAssembly.instantiateStreaming(fetch("app.wasm"), go.importObject).then((result) => {
+    go.run(result.instance);
+});
+```
+
+Now, the "add" function is available anywhere in your javascript.
+
+## Roadmap
+
+- [ ] Argument validation, so you can write less code in your wrapper function.
+- [ ] An easy method for attaching functions to other objects, so they don't have to be in the global scope