types(utils): improve isDate typing

2026-03-06 02:06:58 +08:00 · 2020-02-01 09:51:31 +08:00
parent 1baa60f224
commit e6bd26e0aa
2 changed files with 5 additions and 4 deletions
--- a/src/utils/validate/date.ts
+++ b/src/utils/validate/date.ts
@@ -1,8 +1,8 @@
 import { isNaN } from './number';

-export function isDate(date: Date): boolean {
+export function isDate(val: Date): val is Date {
  return (
-    Object.prototype.toString.call(date) === '[object Date]' &&
-    !isNaN(date.getTime())
+    Object.prototype.toString.call(val) === '[object Date]' &&
+    !isNaN(val.getTime())
  );
 }