include optional chain to avoid null indexOf error

mattcohen24 · mattcohen24 · commit cd5161a9c4ff · 2024-12-05T14:10:15.000-08:00
diff --git a/src/useDragging.tsx b/src/useDragging.tsx
@@ -34,7 +34,7 @@ export default function useDragging({
     draggingCount++;
     if (
       (ev.dataTransfer.items && ev.dataTransfer.items.length !== 0) ||
-      ev.dataTransfer.types.indexOf('Files') >= 0
+      ev.dataTransfer.types?.indexOf('Files') >= 0
     ) {
       setDragging(true);
     }

Original file line number	Diff line number	Diff line change
`@@ -34,7 +34,7 @@ export default function useDragging({`
`34`	`34`	`draggingCount++;`
`35`	`35`	`if (`
`36`	`36`	`(ev.dataTransfer.items && ev.dataTransfer.items.length !== 0) \|\|`
`37`		`- ev.dataTransfer.types.indexOf('Files') >= 0`
	`37`	`+ ev.dataTransfer.types?.indexOf('Files') >= 0`
`38`	`38`	`) {`
`39`	`39`	`setDragging(true);`
`40`	`40`	`}`