standardize starter code across all language projects (#381)

- Use consistent greet(name) function pattern across all languages
  - Apply language-specific naming conventions (camelCase, PascalCase, snake_case)
  - Rename Python py_check folder to app (more conventional)
  - Rename C# Example files to Greeting for consistency
  - Fix JavaScript best practices (remove console.log, add describe block)
  - Ensure all projects return "Hello, World!" format consistently

Author: kylehoehns

c-sharp/Application/Example.cs

@@ -0,0 +1,9 @@
+namespace Application;
+
+public class Greeter
+{
+    public string Greet(string name)
+    {
+        return $"Hello, {name}!";
+    }
+}

c-sharp/Application/Greeting.cs

@@ -1,2 +1,3 @@
-
-Console.WriteLine("Hello, World!");
+using Application;
+
+Console.WriteLine(new Greeter().Greet("World"));

c-sharp/Application/Program.cs

@@ -4,4 +4,7 @@ init:
 verify:
 	dotnet test
 
-.PHONY: init verify
+run:
+	dotnet run --project Application
+
+.PHONY: init verify run

c-sharp/Makefile

@@ -1,9 +1,21 @@
 # C# Technical Interview
 
-We're excited to pair with you on a coding kata! 
+We're excited to pair with you on a coding kata!
 
 You will use this solution to write your code and tests to solve the problem of the kata below. We will gradually add requirements as we move through the problem and get a feel of what it's like to work with you in a real-world situation. Take your time, explain your thinking, and have fun with us! Show off your skills and ask any questions you have and we'll do the same.
 
+## Tech Stack
+- .NET with C#
+- xUnit
+
+## Common Commands
+- `make init`
+    - build the project
+- `make verify`
+    - run tests
+- `make run`
+    - run the application
+
 ## Kata
 
 This section of the README is used to describe the kata and outline the requirements. We'll leave it blank in the public repository to keep the mystery alive, but just know that the kata we have planned is really fun!

c-sharp/README.md

@@ -0,0 +1,16 @@
+namespace UnitTests;
+
+using Application;
+
+public class GreetingTests
+{
+    [Fact]
+    public void GreetReturnsFormattedMessage()
+    {
+        Greeter greeter = new();
+
+        var result = greeter.Greet("World");
+
+        Assert.Equal("Hello, World!", result);
+    }
+}

c-sharp/UnitTests/ExampleTests.cs

@@ -2,11 +2,10 @@ package main
 
 import "fmt"
 
-func SayHello(name string) string {
-	return fmt.Sprintf("Hello %s", name)
+func Greet(name string) string {
+	return fmt.Sprintf("Hello, %s!", name)
 }
 
-
 func main() {
-	fmt.Println(SayHello("world!"))
+	fmt.Println(Greet("World"))
 }

c-sharp/UnitTests/GreetingTests.cs

@@ -2,11 +2,10 @@ package main
 
 import (
 	"testing"
-
 	"github.com/stretchr/testify/assert"
 )
 
-func TestSayHello(t *testing.T) {
-	result := SayHello("world!")
-	assert.Equal(t, "Hello world!", result)
+func TestGreet(t *testing.T) {
+	result := Greet("World")
+	assert.Equal(t, "Hello, World!", result)
 }

go/main.go

@@ -2,7 +2,7 @@
 
 public class Solution {
 
-    public String getGreeting() {
-        return "Hello, world!";
+    public String greet(String name) {
+        return "Hello, " + name + "!";
     }
 }