solve excersise get-ordinal-number.js

Author: AbdennourHachemi

practice-tdd/get-ordinal-number.js

@@ -1,3 +1,12 @@
 export function getOrdinalNumber(num) {
-  return "1st";
+  if (String(num).match(/\b(?!11\b)\d*1\b/)) {
+    return `${num}st`;
+  }
+  if (String(num).match(/\b(?!12\b)\d*2\b/)) {
+    return `${num}nd`;
+  }
+  if (String(num).match(/\b(?!13\b)\d*3\b/)) {
+    return `${num}rd`;
+  }
+  return `${num}th`;
 }