Completed get-ordinal-number

Author: libanj0161

Sprint-3/2-practice-tdd/get-ordinal-number.js

@@ -1,5 +1,18 @@
 function getOrdinalNumber(num) {
-  return "1st";
+  const lastdigit = num % 10;
+  if (lastdigit === 1) {
+    return `${num}st`;
+  }
+
+  if (lastdigit === 2) {
+    return `${num}nd`;
+  }
+
+  if (lastdigit === 3) {
+    return `${num}rd`;
+  } else {
+    return `${num}th`;
+  }
 }
 
 module.exports = getOrdinalNumber;

Sprint-3/2-practice-tdd/get-ordinal-number.test.js

@@ -18,3 +18,15 @@ test("should append 'st' for numbers ending with 1, except those ending with 11"
   expect(getOrdinalNumber(21)).toEqual("21st");
   expect(getOrdinalNumber(131)).toEqual("131st");
 });
+
+test("should append 'nd' for numbers ending with 2", () => {
+  expect(getOrdinalNumber(2)).toEqual("2nd");
+  expect(getOrdinalNumber(22)).toEqual("22nd");
+  expect(getOrdinalNumber(132)).toEqual("132nd");
+});
+
+test("should append 'rd' for numbers ending with 3, except those ending with 13", () => {
+  expect(getOrdinalNumber(3)).toEqual("3rd");
+  expect(getOrdinalNumber(33)).toEqual("33rd");
+  expect(getOrdinalNumber(133)).toEqual("133rd");
+});