From d1e68e0dc3b1613218d8d92d4e0bf26db3d322b6 Mon Sep 17 00:00:00 2001
From: yuu <yogistanada252@gmail.com>
Date: Wed, 11 Oct 2023 20:25:28 +0700
Subject: [PATCH 1/2] feat: ucfirst implemented

---
 go/readme.md       |  8 ++++++
 go/ucfirst.go      | 22 +++++++++++++++
 go/ucfirst_test.go | 70 ++++++++++++++++++++++++++++++++++++++++++++++
 main.go            | 27 ++++++++++++++++++
 4 files changed, 127 insertions(+)
 create mode 100644 go/ucfirst.go
 create mode 100644 go/ucfirst_test.go
 create mode 100644 main.go

diff --git a/go/readme.md b/go/readme.md
index 6e2dd27..4f931b9 100644
--- a/go/readme.md
+++ b/go/readme.md
@@ -222,4 +222,12 @@ shuffle := StrShuffle("abcdef")
 
 //This will print something like: "bfdaec"
 fmt.Println(shuffle)
+```
+
+### `Ucfirst`
+
+```go
+var converted = pehape.Ucfirst("hello world")
+fmt.Println(converted)
+//result : "Hello world"
 ```
\ No newline at end of file
diff --git a/go/ucfirst.go b/go/ucfirst.go
new file mode 100644
index 0000000..5920cf7
--- /dev/null
+++ b/go/ucfirst.go
@@ -0,0 +1,22 @@
+package pehape
+
+import (
+	"unicode"
+	"unicode/utf8"
+)
+
+// The Ucfirst() function converts the first character of a string to uppercase.
+// Parameter
+// - str => string to be converted
+// Return
+// - res => converted string
+func Ucfirst(str string) string {
+	if str == "" {
+		return ""
+	}
+
+	r, size := utf8.DecodeRuneInString(str)
+
+	u := unicode.ToUpper(r)
+	return string(u) + str[size:]
+}
diff --git a/go/ucfirst_test.go b/go/ucfirst_test.go
new file mode 100644
index 0000000..86e0c00
--- /dev/null
+++ b/go/ucfirst_test.go
@@ -0,0 +1,70 @@
+package pehape_test
+
+import (
+	"testing"
+
+	PHP "github.com/teknologi-umum/pehape/go"
+)
+
+func TestUcfirst(t *testing.T) {
+	type test struct {
+		param  string
+		expect string
+	}
+
+	testCases := []test{
+		{
+			param:  "Hello",
+			expect: "Hello",
+		},
+		{
+			param:  "HELLO",
+			expect: "HELLO",
+		},
+		{
+			param:  "GoLang",
+			expect: "GoLang",
+		},
+		{
+			param:  "golang",
+			expect: "Golang",
+		},
+		{
+			param:  "gOLANG",
+			expect: "GOLANG",
+		},
+		{
+			param:  "g",
+			expect: "G",
+		},
+		{
+			param:  "!@@#4#Golang",
+			expect: "!@@#4#Golang",
+		},
+		{
+			param:  "每一次搜索如何在",
+			expect: "每一次搜索如何在",
+		},
+		{
+			param:  "🙂🤣",
+			expect: "🙂🤣",
+		},
+	}
+
+	for _, test := range testCases {
+		if res := PHP.Ucfirst(test.param); res != test.expect {
+			t.Errorf("expect %s, but got %s", test.expect, res)
+		}
+	}
+
+	t.Run("It should return empty string if the given parameter is empty string", func(t *testing.T) {
+		test := test{
+			param:  "",
+			expect: "",
+		}
+
+		if res := PHP.Ucfirst(test.param); res != test.expect {
+			t.Errorf("expect empty string, but got %s", res)
+		}
+	})
+}
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..fa41563
--- /dev/null
+++ b/main.go
@@ -0,0 +1,27 @@
+package main
+
+import (
+	"fmt"
+	"unicode/utf8"
+)
+
+func main() {
+	var a = "a"
+
+	var c = "🙂a"
+
+	var b = []rune(a)
+
+	var d = []rune(c)
+	e, size := utf8.DecodeRuneInString(c)
+
+	fmt.Println(b)
+	fmt.Println(string(b))
+
+	fmt.Println(b[0] - 32)
+	fmt.Println(string(b[0] - 32))
+
+	fmt.Println(d)
+	fmt.Println(e)
+	fmt.Println(size)
+}

From 39b8f1289153c395406c0dd2fd545ef005bdcec3 Mon Sep 17 00:00:00 2001
From: yuu <yogistanada252@gmail.com>
Date: Fri, 13 Oct 2023 21:17:08 +0700
Subject: [PATCH 2/2] delte unecessary code

---
 main.go | 27 ---------------------------
 1 file changed, 27 deletions(-)
 delete mode 100644 main.go

diff --git a/main.go b/main.go
deleted file mode 100644
index fa41563..0000000
--- a/main.go
+++ /dev/null
@@ -1,27 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"unicode/utf8"
-)
-
-func main() {
-	var a = "a"
-
-	var c = "🙂a"
-
-	var b = []rune(a)
-
-	var d = []rune(c)
-	e, size := utf8.DecodeRuneInString(c)
-
-	fmt.Println(b)
-	fmt.Println(string(b))
-
-	fmt.Println(b[0] - 32)
-	fmt.Println(string(b[0] - 32))
-
-	fmt.Println(d)
-	fmt.Println(e)
-	fmt.Println(size)
-}