fix: fix minMax plugin parsing empty array bug (#1062)

Author: iamkun

src/plugin/minMax/index.js

@@ -1,7 +1,7 @@
 export default (o, c, d) => {
   const sortBy = (method, dates) => {
-    if (!dates.length) {
-      return d()
+    if (!dates || !dates.length || !dates[0] || (dates.length === 1 && !dates[0].length)) {
+      return null
     }
     if (dates.length === 1 && dates[0].length > 0) {
       [dates] = dates

test/plugin/minMax.test.js

@@ -18,10 +18,21 @@ const arg3 = dayjs('2017-01-01')
 const arg4 = dayjs('Invalid Date')
 
 it('Return current time if no argument', () => {
-  expect(dayjs.max().format())
-    .toBe(dayjs().format())
-  expect(dayjs.min().format())
-    .toBe(dayjs().format())
+  expect(dayjs.max())
+    .toBe(null)
+  expect(dayjs.min())
+    .toBe(null)
+  expect(dayjs.max(null))
+    .toBe(null)
+  expect(dayjs.min(null))
+    .toBe(null)
+})
+
+it('Return current time if passing empty array', () => {
+  expect(dayjs.max([]))
+    .toBe(null)
+  expect(dayjs.min([]))
+    .toBe(null)
 })
 
 it('Compare between arguments', () => {