fleshed out up to step 6

step05/src/components/TodoFooter.tsx

@@ -0,0 +1,13 @@
+import React from "react";
+
+export const TodoFooter = (props: any) => {
+
+  return (
+    <footer>
+      <span>
+        <span className="remaining">4</span> items left
+      </span>
+      <button className="button">Clear Completed</button>
+    </footer>
+  );
+};

step05/src/components/TodoHeader.tsx

@@ -0,0 +1,23 @@
+import React from 'react';
+
+export class TodoHeader extends React.Component {
+
+  render() {
+    return (
+      <div>
+        <h1>todos</h1>
+        <input className="textfield" />
+        <button  className="button add">
+          Add
+        </button>
+        <div className="filter">
+          <button className="active">
+            all
+          </button>
+          <button >active</button>
+          <button>completed</button>
+        </div>
+      </div>
+    );
+  }
+}

step05/src/components/TodoList.tsx

@@ -0,0 +1,40 @@
+import React from 'react';
+import { TodoListItem } from './TodoListItem';
+
+export class TodoList extends React.Component<any, any> {
+  render() {
+    const { filter, todos } = this.props;
+    let filteredTodos: typeof todos = {};
+
+    switch (filter) {
+      case 'completed':
+        Object.keys(todos).forEach(id => {
+          if (todos[id].completed) {
+            filteredTodos[id] = todos[id];
+          }
+        });
+        break;
+
+      case 'active':
+        Object.keys(todos).forEach(id => {
+          if (!todos[id].completed) {
+            filteredTodos[id] = todos[id];
+          }
+        });
+        break;
+
+      default:
+        filteredTodos = todos;
+        break;
+    }
+
+    return (
+      <ul className="todos">
+         <TodoListItem/>
+         <TodoListItem/> 
+         <TodoListItem/> 
+         <TodoListItem/>  
+      </ul>
+    );
+  }
+}

step05/src/components/TodoListItem.tsx

@@ -0,0 +1,13 @@
+import React from "react";
+
+export class TodoListItem extends React.Component {
+  render() {
+    return (
+      <li className="todo">
+        <label>
+          <input type="checkbox" /> Todo 1
+        </label>
+      </li>
+    );
+  }
+}