Add new API format (#15)

* disable `no-debugger`

* Add `format`

* Update README

* Add ISO Date format

.eslintrc

@@ -4,6 +4,7 @@
     "jest": true
   },
   "rules": {
+    "no-debugger": "off",
     "no-unused-expressions": [
       2, { "allowTaggedTemplates": true }
     ]

README.md

@@ -46,7 +46,7 @@ import { tw } from '@17media/dad'
 tw('2017-12-12')
 // 1513036800
 
-tw(1513036800)
+tw(1514736000)
 // {
 //   year: 2018,
 //   month: 0,
@@ -56,6 +56,8 @@ tw(1513036800)
 //   seconds: 0,
 //   day: 1
 // }
+
+tw(1514736000).format('YYYY/MM/DD hh:mm:ss') //  2018/01/01 00:00:00
 ```
 
 ## Valid date format

src/libs/__tests__/Dad.spec.js

@@ -44,7 +44,7 @@ describe('Dad functionality', () => {
   it('if input is second number', () => {
     const CST0101 = new Date('2018-01-01 00:00:00+08:00') / 1000;
 
-    expect(tw(CST0101)).toEqual({
+    expect(tw(CST0101)).toMatchObject({
       year: 2018,
       month: 0,
       date: 1,
@@ -53,7 +53,7 @@ describe('Dad functionality', () => {
       seconds: 0,
       day: 1,
     });
-    expect(ja(CST0101)).toEqual({
+    expect(ja(CST0101)).toMatchObject({
       year: 2018,
       month: 0,
       date: 1,
@@ -62,7 +62,7 @@ describe('Dad functionality', () => {
       seconds: 0,
       day: 1,
     });
-    expect(indo(CST0101)).toEqual({
+    expect(indo(CST0101)).toMatchObject({
       year: 2017,
       month: 11,
       date: 31,

src/utils/__tests__/prefix0.spec.js

@@ -0,0 +1,13 @@
+import prefix0 from '../prefix0';
+
+describe('Test `prefix0` Spec', () => {
+  it('should be prefixed', () => {
+    expect(prefix0(9)).toBe('09');
+    expect(prefix0('9')).toBe('09');
+  });
+
+  it('shouldn\'t be prefixed ', () => {
+    expect(prefix0(10)).toBe('10');
+    expect(prefix0('10')).toBe('10');
+  });
+});

src/utils/__tests__/secToDate.spec.js

@@ -6,7 +6,7 @@ describe('`secToDate` Spec', () => {
 
     expect(
       secToDate(8)(s)
-    ).toEqual({
+    ).toMatchObject({
       year: 2018,
       month: 0,
       date: 4,
@@ -22,7 +22,7 @@ describe('`secToDate` Spec', () => {
 
     expect(
       secToDate(9)(s)
-    ).toEqual({
+    ).toMatchObject({
       year: 2018,
       month: 0,
       date: 4,
@@ -32,4 +32,24 @@ describe('`secToDate` Spec', () => {
       day: 4,
     });
   });
+
+  it('test format feature', () => {
+    const s = new Date('2018-01-04 08:00:00+08:00') / 1000;
+
+    expect(
+      secToDate(9)(s).format('YYYY/MM/DD hh:mm:ss')
+    ).toBe('2018/01/04 09:00:00');
+
+    expect(
+      secToDate(9)(s).format('D-M-YY h:m:s YMD')
+    ).toBe('4-1-18 9:0:0 YMD');
+  });
+
+  it('test ISO date string', () => {
+    const s = new Date('2018-01-04 08:00:00+08:00') / 1000;
+
+    expect(
+      secToDate(9)(s).ISO
+    ).toBe('2018-01-04T09:00:00');
+  });
 });

src/utils/prefix0.js

@@ -0,0 +1,11 @@
+const prefix0 = (stringOfNumber) => {
+  const n = String(stringOfNumber);
+
+  if (n.length < 2) {
+    return `0${n}`;
+  }
+
+  return n;
+};
+
+export default prefix0;

src/utils/secToDate.js

@@ -1,3 +1,5 @@
+import prefix0 from './prefix0';
+
 /**
  * @param {Number} tz
  * @return {Date}
@@ -7,7 +9,7 @@ const secToDate = tz => (sec = 0) => {
 
   D.setTime(+D + (tz * 60 * 60 * 1000));
 
-  return {
+  const date = {
     year: D.getUTCFullYear(),
     month: D.getUTCMonth(),
     date: D.getUTCDate(),
@@ -16,6 +18,21 @@ const secToDate = tz => (sec = 0) => {
     seconds: D.getUTCSeconds(),
     day: D.getUTCDay(),
   };
+
+  date.format = (str = '') => str
+    .replace(/[yY]+/, Y => String(date.year).slice(0 - Y.length))
+    .replace(/M+/, (MM) => {
+      const mm = date.month + 1;
+      return (MM.length > 1 ? prefix0(mm) : mm);
+    })
+    .replace(/D+/, DD => (DD.length > 1 ? prefix0(date.date) : date.date))
+    .replace(/h+/, h => (h.length > 1 ? prefix0(date.hours) : date.hours))
+    .replace(/m+/, h => (h.length > 1 ? prefix0(date.minutes) : date.minutes))
+    .replace(/s+/, h => (h.length > 1 ? prefix0(date.seconds) : date.seconds));
+
+  date.ISO = date.format('YYYY-MM-DDThh:mm:ss');
+
+  return date;
 };
 
 export default secToDate;