Plural php + ts

plural/typescript/index.ts

@@ -0,0 +1,8 @@
+export type WordForms = [string, string, string];
+
+export const plural = (count: number, words: WordForms): string => {
+    const cases = [2, 0, 1, 1, 1, 2];
+    return words[
+      count % 100 > 4 && count % 100 < 20 ? 2 : cases[Math.min(count % 10, 5)]
+    ];
+  };