Update example code in README.md

tim-soft · web-flow · commit 61ed66b34321 · 2019-08-25T01:32:44.000-07:00
diff --git a/README.md b/README.md
@@ -51,7 +51,11 @@ class App extends React.Component {
     }
   }
 
-  handleUpdate = data => this.setState({ data })
+  // Update current state with changes from controls
+  handleUpdate = newData =>
+    this.setState(prevState => ({
+      data: { ...prevState.data, ...newData }
+    }));
 
   render() {
     const { data } = this.state;

Original file line number	Diff line number	Diff line change
`@@ -51,7 +51,11 @@ class App extends React.Component {`
`51`	`51`	`}`
`52`	`52`	`}`
`53`	`53`
`54`		`- handleUpdate = data => this.setState({ data })`
	`54`	`+ // Update current state with changes from controls`
	`55`	`+ handleUpdate = newData =>`
	`56`	`+ this.setState(prevState => ({`
	`57`	`+ data: { ...prevState.data, ...newData }`
	`58`	`+ }));`
`55`	`59`
`56`	`60`	`render() {`
`57`	`61`	`const { data } = this.state;`