fix: Add locale (zh-tw) meridiem (#2149)

src/locale/zh-tw.js

@@ -42,10 +42,24 @@ const locale = {
     MM: '%d 個月',
     y: '1 年',
     yy: '%d 年'
+  },
+  meridiem: (hour, minute) => {
+    const hm = (hour * 100) + minute
+    if (hm < 600) {
+      return '凌晨'
+    } else if (hm < 900) {
+      return '早上'
+    } else if (hm < 1100) {
+      return '上午'
+    } else if (hm < 1300) {
+      return '中午'
+    } else if (hm < 1800) {
+      return '下午'
+    }
+    return '晚上'
   }
 }
 
 dayjs.locale(locale, null, true)
 
 export default locale
-

test/locale/zh-tw.test.js

@@ -0,0 +1,21 @@
+import dayjs from '../../src'
+import advancedFormat from '../../src/plugin/advancedFormat'
+import weekOfYear from '../../src/plugin/weekOfYear'
+import '../../src/locale/zh'
+import '../../src/locale/zh-tw'
+
+dayjs.extend(advancedFormat).extend(weekOfYear)
+
+const zh = dayjs().locale('zh')
+const zhTW = dayjs().locale('zh-tw')
+
+test('ordinal', () => {
+  expect(zh.format('wo')).toEqual(`${zh.format('w')}周`)
+  expect(zhTW.format('wo')).toEqual(`${zhTW.format('w')}週`)
+})
+
+test('Meridiem', () => {
+  for (let i = 0; i <= 24; i += 1) {
+    expect(zh.add(i, 'hour').format('A')).toBe(zhTW.add(i, 'hour').format('A'))
+  }
+})