js updates

step1-04/demo/src/components/Counter.tsx

@@ -1,27 +1,11 @@
 import React from 'react';
-import { Button } from './Button';
 
-export class Counter extends React.Component<{ text: string }, { counter: number }> {
-  constructor(props) {
-    super(props);
-    this.state = {
-      counter: 0
-    };
-  }
+export class Counter extends React.Component<any, any> {
+  
   render() {
-    const { counter } = this.state;
-    const { text } = this.props;
+   
     return (
-      <div>
-        {text}: {counter}
-        <Button
-          onClick={() => {
-            this.setState({ counter: counter + 1 });
-          }}
-        >
-          Click
-        </Button>
-      </div>
+     
     );
   }
 }