Fix error:Cannot read property 'setMap' of undefined

Wojciech Meler · Wojciech Meler · commit 6cddf3236908 · 2016-10-26T19:00:35.000+02:00
diff --git a/src/components/Marker.js b/src/components/Marker.js
@@ -26,7 +26,9 @@ export class Marker extends React.Component {
   componentDidUpdate(prevProps) {
     if ((this.props.map !== prevProps.map) ||
       (this.props.position !== prevProps.position)) {
-        this.marker.setMap(null);
+        if (this.marker) {
+            this.marker.setMap(null);
+        }
         this.renderMarker();
     }
   }

Original file line number	Diff line number	Diff line change
`@@ -26,7 +26,9 @@ export class Marker extends React.Component {`
`26`	`26`	`componentDidUpdate(prevProps) {`
`27`	`27`	`if ((this.props.map !== prevProps.map) \|\|`
`28`	`28`	`(this.props.position !== prevProps.position)) {`
`29`		`- this.marker.setMap(null);`
	`29`	`+ if (this.marker) {`
	`30`	`+ this.marker.setMap(null);`
	`31`	`+ }`
`30`	`32`	`this.renderMarker();`
`31`	`33`	`}`
`32`	`34`	`}`