add a has method to mirror for checking whether an id is in the map

2018-10-31 12:06:32 +08:00
parent 7b9e57bd6c
commit 8acf670a99
2 changed files with 6 additions and 2 deletions
--- a/src/types.ts
+++ b/src/types.ts
@@ -209,8 +209,9 @@ export type inputCallback = (v: inputValue & { id: number }) => void;
 export type Mirror = {
  map: idNodeMap;
  getId: (n: INode) => number;
-  getNode: (id: number) => INode;
+  getNode: (id: number) => INode | null;
  removeNodeFromMap: (n: INode) => void;
+  has: (id: number) => boolean;
 };

 export type throttleOptions = {