Merge pull request #10 from jasanst/patch-2

tsiq-swyx · web-flow · commit f5ca9eb3d18a · 2018-06-03T13:16:02.000-04:00
Update README.md
diff --git a/README.md b/README.md
@@ -147,9 +147,9 @@ class App extends React.Component<{
     );
   }
   increment = (amt: number) => { // like this
-    this.setState({
-      count: this.state.count + amt
-    });
+    this.setState(state => ({
+      count: state.count + amt
+    }));
   }
 }
 ```
@@ -422,9 +422,9 @@ class App extends React.Component<{}, {
     );
   }
   increment = (amt: number) => {
-    this.setState({
-      count: this.state.count + amt
-    });
+    this.setState(state => ({
+      count: (state.count || 0) + amt
+    }));
   }
 }
 ```

Original file line number	Diff line number	Diff line change
`@@ -147,9 +147,9 @@ class App extends React.Component<{`
`147`	`147`	`);`
`148`	`148`	`}`
`149`	`149`	`increment = (amt: number) => { // like this`
`150`		`- this.setState({`
`151`		`- count: this.state.count + amt`
`152`		`- });`
	`150`	`+ this.setState(state => ({`
	`151`	`+ count: state.count + amt`
	`152`	`+ }));`
`153`	`153`	`}`
`154`	`154`	`}`
`155`	`155`	```
`@@ -422,9 +422,9 @@ class App extends React.Component<{}, {`
`422`	`422`	`);`
`423`	`423`	`}`
`424`	`424`	`increment = (amt: number) => {`
`425`		`- this.setState({`
`426`		`- count: this.state.count + amt`
`427`		`- });`
	`425`	`+ this.setState(state => ({`
	`426`	`+ count: (state.count \|\| 0) + amt`
	`427`	`+ }));`
`428`	`428`	`}`
`429`	`429`	`}`
`430`	`430`	```