DatePicker: fix setMonth, fixed #3923 (#3935)

packages/date-picker/src/panel/date-range.vue

@@ -312,8 +312,7 @@
           const target = new Date(type === 'min' ? this.minDate : this.maxDate);
           if (target) {
             target.setFullYear(parsedValue.getFullYear());
-            target.setMonth(parsedValue.getMonth());
-            target.setDate(parsedValue.getDate());
+            target.setMonth(parsedValue.getMonth(), parsedValue.getDate());
           }
         }
       },
@@ -331,8 +330,7 @@
           const target = new Date(type === 'min' ? this.minDate : this.maxDate);
           if (target) {
             target.setFullYear(parsedValue.getFullYear());
-            target.setMonth(parsedValue.getMonth());
-            target.setDate(parsedValue.getDate());
+            target.setMonth(parsedValue.getMonth(), parsedValue.getDate());
           }
           if (type === 'min') {
             if (target < this.maxDate) {

packages/date-picker/src/panel/date.vue

@@ -293,8 +293,7 @@
             this.$emit('pick', new Date(value.getTime()));
           }
           this.date.setFullYear(value.getFullYear());
-          this.date.setMonth(value.getMonth());
-          this.date.setDate(value.getDate());
+          this.date.setMonth(value.getMonth(), value.getDate());
         } else if (this.selectionMode === 'week') {
           this.week = value.week;
           this.$emit('pick', value.date);

packages/date-picker/src/panel/time-range.vue

@@ -151,11 +151,9 @@
       handleChange() {
         if (this.minTime > this.maxTime) return;
         MIN_TIME.setFullYear(this.minTime.getFullYear());
-        MIN_TIME.setMonth(this.minTime.getMonth());
-        MIN_TIME.setDate(this.minTime.getDate());
+        MIN_TIME.setMonth(this.minTime.getMonth(), this.minTime.getDate());
         MAX_TIME.setFullYear(this.maxTime.getFullYear());
-        MAX_TIME.setMonth(this.maxTime.getMonth());
-        MAX_TIME.setDate(this.maxTime.getDate());
+        MAX_TIME.setMonth(this.maxTime.getMonth(), this.maxTime.getDate());
         this.$refs.minSpinner.selectableRange = [[MIN_TIME, this.maxTime]];
         this.$refs.maxSpinner.selectableRange = [[this.minTime, MAX_TIME]];
         this.handleConfirm(true);