make sure there is an event to persist

triptate · triptate · commit 3dba017e973f · 2020-05-13T22:12:12.000-04:00
diff --git a/src/Mentions.tsx b/src/Mentions.tsx
@@ -245,7 +245,7 @@ class Mentions extends React.Component<MentionsProps, MentionsState> {
   public onBlur = (event?: React.FocusEvent<HTMLTextAreaElement>) => {
     // the timeout causes onBlur to be called async, which causes the react synthetic
     // event to be nullified. persist it if possible so clients can use it.
-    if (event.persist) {
+    if (event && event.persist) {
       event.persist();
     }
     this.focusId = window.setTimeout(() => {

Original file line number	Diff line number	Diff line change
`@@ -245,7 +245,7 @@ class Mentions extends React.Component<MentionsProps, MentionsState> {`
`245`	`245`	`public onBlur = (event?: React.FocusEvent<HTMLTextAreaElement>) => {`
`246`	`246`	`// the timeout causes onBlur to be called async, which causes the react synthetic`
`247`	`247`	`// event to be nullified. persist it if possible so clients can use it.`
`248`		`- if (event.persist) {`
	`248`	`+ if (event && event.persist) {`
`249`	`249`	`event.persist();`
`250`	`250`	`}`
`251`	`251`	`this.focusId = window.setTimeout(() => {`