[api] Pass Date objects to IsoDateInput validators instead of string.

api/components/IsoDateInput.vue

@@ -62,8 +62,8 @@ export default defineComponent({
   setup(props, { emit, attrs }) {
     const customRules = computed(() => [
       props.type == 'date' ? stringIsDate : props.type == 'time' ? stringIsTime : stringIsDateTime,
-      (value?: string | null) => {
+      (value?: string) => {
-        if (props.rules.length > 0 && value) {
+        if (props.rules.length > 0 && !!value) {
           let date: Date | undefined = undefined;
           if (props.type == 'date') date = modifyDate(value);
           else if (props.type == 'time') date = modifyTime(value);
@@ -71,10 +71,11 @@ export default defineComponent({
             const split = value.split(' ');
             date = modifyTime(split[1], modifyDate(split[0]));
           }
-          props.rules.forEach((rule) => {
+          for (const rule of props.rules) {
             const r = rule(date);
             if (typeof r === 'string') return r;
-          });
+          }
+          return true;
         }
       },
     ]);