use let

cat.js

@@ -0,0 +1,61 @@
+var Hello = (function () {
+    function Hello(name) {
+        this.name = name;
+    }
+    Object.defineProperty(Hello.prototype, "age", {
+        get: function () {
+            return this._age;
+        },
+        set: function (value) {
+            this._age = value;
+        },
+        enumerable: true,
+        configurable: true
+    });
+    Object.defineProperty(Hello.prototype, "test", {
+        get: function () {
+            return this._test;
+        },
+        set: function (value) {
+            this._test = value;
+        },
+        enumerable: true,
+        configurable: true
+    });
+    Hello.prototype.getHelloString = function () {
+        return "Hello, " + name + "!";
+    };
+    Hello.prototype.say = function () {
+        return this.getHelloString();
+    };
+    return Hello;
+}());
+var helloKei1 = new Hello("計");
+helloKei1.age = 17;
+var words = helloKei1.say();
+var age = helloKei1.age;
+var List = (function () {
+    function List() {
+        this.data = [];
+    }
+    List.prototype.add = function (item) {
+        this.data.push(item);
+    };
+    List.prototype.get = function (index) {
+        return this.data[index];
+    };
+    return List;
+}());
+var dateList = new List();
+dateList.add(new Date());
+var d = dateList.get(0);
+var nameList = new List();
+nameList.add("kei");
+var n = nameList.get(0);
+var str = window.prompt('入力してください');
+showStr(str);
+function showStr(str) {
+    alert(str);
+}
+function test() {
+}

cat.ts

@@ -1,20 +1,61 @@
-interface IAnimal {
-  name:  string;
-  makeSound(): string;
+let Hello = (function () {
+    function Hello(name) {
+        this.name = name;
+    }
+    Object.defineProperty(Hello.prototype, "age", {
+        get: function () {
+            return this._age;
+        },
+        set: function (value) {
+            this._age = value;
+        },
+        enumerable: true,
+        configurable: true
+    });
+    Object.defineProperty(Hello.prototype, "test", {
+        get: function () {
+            return this._test;
+        },
+        set: function (value) {
+            this._test = value;
+        },
+        enumerable: true,
+        configurable: true
+    });
+    Hello.prototype.getHelloString = function () {
+        return "Hello, " + name + "!";
+    };
+    Hello.prototype.say = function () {
+        return this.getHelloString();
+    };
+    return Hello;
+}());
+let helloKei1 = new Hello("計");
+helloKei1.age = 17;
+let words = helloKei1.say();
+let age = helloKei1.age;
+let List = (function () {
+    function List() {
+        this.data = [];
+    }
+    List.prototype.add = function (item) {
+        this.data.push(item);
+    };
+    List.prototype.get = function (index) {
+        return this.data[index];
+    };
+    return List;
+}());
+let dateList = new List();
+dateList.add(new Date());
+let d = dateList.get(0);
+let nameList = new List();
+nameList.add("kei");
+let n = nameList.get(0);
+let str = window.prompt('入力してください');
+showStr(str);
+function showStr(str) {
+    alert(str);
 }
-
-class Cat implements IAnimal {
-  public name: string;
-  constructor(name: string) {
-    this.name = name;
-  }
-  public makeSound(): string {
-    return "nyaaaa";
-  };
+function test() {
 }
-
-
-var myCat : IAnimal;
-myCat = new Cat("kotetu");
-
-var sound = myCat.makeSound();