correct flow types

nmn · Facebook Github Bot 4 · commit 1673e00e2ba3 · 2016-05-16T07:58:26.000-07:00
Summary: The function should have optional arguments, but not nullable types. Closes #7580 Differential Revision: D3304994 Pulled By: davidaurelio fbshipit-source-id: 9918817429126ea16dd3076b61a3493c3a3a8388
diff --git a/Libraries/CustomComponents/Navigator/Navigation/NavigationRouteStack.js b/Libraries/CustomComponents/Navigator/Navigation/NavigationRouteStack.js
@@ -117,7 +117,7 @@ class RouteStack {
     return this._routeNodes.findIndex(finder, this);
   }
 
-  slice(begin: ?number, end: ?number): RouteStack {
+  slice(begin?: number, end?: number): RouteStack {
     var routeNodes = this._routeNodes.slice(begin, end);
     var index = Math.min(this._index, routeNodes.size - 1);
     return this._update(index, routeNodes);

Original file line number	Diff line number	Diff line change
`@@ -117,7 +117,7 @@ class RouteStack {`
`117`	`117`	`return this._routeNodes.findIndex(finder, this);`
`118`	`118`	`}`
`119`	`119`
`120`		`- slice(begin: ?number, end: ?number): RouteStack {`
	`120`	`+ slice(begin?: number, end?: number): RouteStack {`
`121`	`121`	`var routeNodes = this._routeNodes.slice(begin, end);`
`122`	`122`	`var index = Math.min(this._index, routeNodes.size - 1);`
`123`	`123`	`return this._update(index, routeNodes);`