补充完整对应的ts类型

2023-01-08 13:08:30 +08:00 · 2023-01-08 13:08:30 +08:00 · 01a6fcef20
commit 01a6fcef20
parent a7a3618ee0
1 changed files with 1 additions and 1 deletions
--- a/codes/typescript/module/ListNode.ts
+++ b/codes/typescript/module/ListNode.ts
@ -20,7 +20,7 @@ export default class ListNode {
     * @param arr
     * @return
     */
-    arrToLinkedList(arr: number[]) {
+    arrToLinkedList(arr: number[]): ListNode | null {
        const dum: ListNode = new ListNode(0);
        let head = dum;
        for (const val of arr) {