Implement getOrdinalNumber to handle ordinal suffixes correctly

- Return proper suffixes for 1st, 2nd, 3rd, and others (e.g., 4th, 11th, 23rd)
- Added Jest tests for various edge cases including teens (11th-13th)
- Improved function to handle general inputs dynamically

Author: HoussamLh

Sprint-3/3-mandatory-practice/implement/get-ordinal-number.js

@@ -1,5 +1,12 @@
 function getOrdinalNumber(num) {
- return "1st";
+  const suffixes = ["th", "st", "nd", "rd"];
+  const value = num % 100;
+  if (value >= 11 && value <= 13) {
+    return num + "th";
+  }
+  const lastDigit = num % 10;
+  const suffix = suffixes[lastDigit] || "th";
+  return num + suffix;
 }
 
-module.exports = getOrdinalNumber;
+module.exports = getOrdinalNumber;

Sprint-3/3-mandatory-practice/implement/get-ordinal-number.test.js

@@ -11,3 +11,20 @@ const getOrdinalNumber = require("./get-ordinal-number");
 test("should return '1st' for 1", () => {
     expect(getOrdinalNumber(1)).toEqual("1st");
     });
+
+test("should return '2nd' for 2", () => {
+  expect(getOrdinalNumber(2)).toEqual("2nd");
+});
+
+test("should return '3rd' for 3", () => {
+  expect(getOrdinalNumber(3)).toEqual("3rd");
+});
+
+test("should return '4th' for 4", () => {
+  expect(getOrdinalNumber(4)).toEqual("4th");
+});
+
+test("should return '11th' for 11", () => {
+  expect(getOrdinalNumber(11)).toEqual("11th");
+});
+