Update exercises and add .diffignore

Author: kentcdodds

epicshop/.diffignore

@@ -0,0 +1 @@
+*.test.*

epicshop/post-set-playground.js

@@ -37,9 +37,4 @@ for (const testFile of testFiles) {
 	const dest = path.join(destDir, testFile)
 
 	fs.copyFileSync(src, dest)
-	console.log(`✅ Copied ${testFile} from solution to playground`)
-}
-
-if (testFiles.length > 0) {
-	console.log(`\n📋 Copied ${testFiles.length} test file(s) to playground`)
 }

exercises/01.classes/01.problem.class-basics/index.ts

@@ -18,5 +18,3 @@
 // cart.addItem(laptop)
 // cart.addItem(mouse)
 // console.log(cart.getTotal())
-
-export {}

exercises/01.classes/01.solution.class-basics/index.ts

@@ -40,5 +40,3 @@ const cart = new ShoppingCart()
 cart.addItem(laptop)
 cart.addItem(mouse)
 console.log(`Cart total: $${cart.getTotal()}`)
-
-export {}

exercises/01.classes/02.problem.constructors/index.ts

@@ -23,5 +23,3 @@
 // account.deposit(100)
 // const config = new Config()
 // const customConfig = new Config('example.com', 8080, true)
-
-export {}

exercises/01.classes/02.solution.constructors/index.ts

@@ -44,5 +44,3 @@ const config = new Config()
 const customConfig = new Config('example.com', 8080, true)
 console.log(`Default config: ${config.host}:${config.port}`)
 console.log(`Custom config: ${customConfig.host}:${customConfig.port}`)
-
-export {}

exercises/02.access-modifiers/01.problem.public-private/index.ts

@@ -13,5 +13,3 @@
 // console.log(user.password) // ❌ Should error - password is private
 // console.log(user.login('secret123')) // ✅ Should return true
 // console.log(user.login('wrong')) // ✅ Should return false
-
-export {}

exercises/02.access-modifiers/01.solution.public-private/index.ts

@@ -19,5 +19,3 @@ console.log(user.username) // ✅ Works - username is public
 // console.log(user.password) // ❌ Error - password is private
 console.log(user.login('secret123')) // ✅ Returns true
 console.log(user.login('wrong')) // ✅ Returns false
-
-export {}

exercises/02.access-modifiers/02.problem.protected/index.ts

@@ -14,5 +14,3 @@
 // console.log(car.getInfo()) // ✅ Should print "Toyota Camry"
 // console.log(car.make) // ❌ Should error - make is protected
 // console.log(car.model) // ❌ Should error - model is protected
-
-export {}

exercises/02.access-modifiers/02.solution.protected/index.ts

@@ -21,5 +21,3 @@ const car = new Car('Toyota', 'Camry')
 console.log(car.getInfo()) // ✅ Works - getInfo() is public
 // console.log(car.make) // ❌ Error - make is protected
 // console.log(car.model) // ❌ Error - model is protected
-
-export {}