Support partial day of the week

README.md

@@ -28,6 +28,7 @@ template.render(new Date());
  * `YYYY` - Full Year (1992)
  * `YY` - Partial Year (92)
  * `dddd` - Day of the Week (Monday)
+ * `dd` - Partial Day of the Week (Mon)
  * `DD` - Day of the Month (24)
  * `Do` - Day (24th)
  * `h` - Hours - 12h format

__test__/index.spec.js

@@ -41,6 +41,9 @@ describe('tinytime', () => {
     it('days of the week', () => {
       expect(render('{dddd}')).toEqual('Thursday');
     });
+    it('partial day of the week', () => {
+      expect(render('{dd}')).toEqual('Thu');
+    });
     it('day of the month', () => {
       expect(render('{Do}')).toEqual('24th');
     });

src/compiler.js

@@ -15,6 +15,7 @@ PostOrAnteMeridiem,
 UserText,
 Day,
 DayOfTheMonth,
+PartialDayOfTheWeek,
 } from './subs';
 import type { Token } from './parser'
 import type { TinyTimeOptions } from './index'
@@ -119,6 +120,9 @@ export default function compiler(tokens: Array<Token>, date: Date, options: Tiny
       case PartialYear:
         compiled += (year + '').slice(2);
         break;
+      case PartialDayOfTheWeek:
+        compiled += days[date.getDay()].slice(0, 3);
+        break;
       case DayOfTheWeek:
         compiled += days[date.getDay()];
         break;

src/subs.js

@@ -20,6 +20,7 @@ export const Day = 'k';
 export const DayOfTheMonth = 'l';
 export const NumberMonth = 'n';
 export const Hour24 = 'm';
+export const PartialDayOfTheWeek = 'o';
 
 const SubToTypeIdentifierMap: {
   [abbreviation: string]: string
@@ -30,6 +31,7 @@ const SubToTypeIdentifierMap: {
   'YYYY': FullYear,
   'YY': PartialYear,
   'dddd': DayOfTheWeek,
+  'dd': PartialDayOfTheWeek,
   'DD': DayOfTheMonth,
   'Do': Day,
   'h': Hour,