Added new Reiwa period

README.md

@@ -25,23 +25,23 @@ To convert the Gregorian year into the Japanese calendar, use the `japaneseYear`
 The output should be an object containing data related to the Japanese calendar year:
 
 ```js
-japaneseYear(new Date(1989, 0))
+japaneseYear(new Date(2019, 0))
 
 // {
-//   "startYear": 1989,
-//   "names": ["Heisei", "平成", "へいせい"],
+//   "startYear": 2019,
+//   "names": ["Reiwa", "令和", "れいわ"],
 //   "currentJapaneseYear": 0
 // }
 ```
 
 You can also obtain the start and end year of a particular Japanese period in Gregorian calendar year format, using the `gregorianYearRange` function.
 
 ```js
-gregorianYearRange("昭和");
+gregorianYearRange("平成");
 
 // {
-//   startYear: 1926,
-//   endYear: 1988
+//   startYear: 1989,
+//   endYear: 2018
 // }
 ```
 

periods.json

@@ -232,5 +232,13 @@
     "names": [
       "平成", "へいせい", "Heisei"
     ]
+  },
+  {
+    "startYear": 2019,
+    "names": [
+      "令和",
+      "れいわ",
+      "Reiwa"
+    ]
   }
 ]

test.js

@@ -21,8 +21,8 @@ describe("#japaneseYear", () => {
 
     expect(heiseiYear.names).to.include("Heisei");
     expect(heiseiYear.currentJapaneseYear).to.equal(2);
-    expect(tokyoOlympicYear.names).to.include("Heisei");
-    expect(tokyoOlympicYear.currentJapaneseYear).to.equal(32);
+    expect(tokyoOlympicYear.names).to.include("Reiwa");
+    expect(tokyoOlympicYear.currentJapaneseYear).to.equal(2);
   });
 
   it("should convert any year below the first recorded emperor calendar date to null", () => {
@@ -53,21 +53,21 @@ describe("#japaneseYear", () => {
 
 describe("#gregorianYearRange", () => {
   it("should convert the Japanese calendar year to the Gregorian year", () => {
+    const reiwaPeriodRange = gregorianYearRange("令和");
+    const reiwaPeriodRangeEnglish = gregorianYearRange("Reiwa");
     const heiseiPeriodRange = gregorianYearRange("平成");
-    const heiseiPeriodRangeEnglish = gregorianYearRange("Heisei");
-    const showaPeriodRange = gregorianYearRange("昭和");
     const meijiPeriodRange = gregorianYearRange("明治");
     const genjiPeriodRange = gregorianYearRange("元治");
     const doesntExistPeriodRange = gregorianYearRange("横浜");
 
+    expect(reiwaPeriodRange.startYear).to.equal(2019);
+    expect(reiwaPeriodRangeEnglish.startYear).to.equal(2019);
     expect(heiseiPeriodRange.startYear).to.equal(1989);
-    expect(heiseiPeriodRangeEnglish.startYear).to.equal(1989);
-    expect(showaPeriodRange.startYear).to.equal(1926);
     expect(meijiPeriodRange.startYear).to.equal(1868);
     expect(genjiPeriodRange.startYear).to.equal(1864);
-    expect(heiseiPeriodRange.endYear).to.equal(null);
-    expect(heiseiPeriodRangeEnglish.endYear).to.equal(null);
-    expect(showaPeriodRange.endYear).to.equal(1988);
+    expect(reiwaPeriodRange.endYear).to.equal(null);
+    expect(reiwaPeriodRangeEnglish.endYear).to.equal(null);
+    expect(heiseiPeriodRange.endYear).to.equal(2018);
     expect(meijiPeriodRange.endYear).to.equal(1911);
     expect(genjiPeriodRange.endYear).to.equal(1864);
     expect(doesntExistPeriodRange).to.equal(null);