feat: today's freecodecamp challenge

src/freecodecamp/daily/2025-11-20/main.spec.ts

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+/**
+ * @copyright NHCarrigan
+ * @license Naomi's Public License
+ * @author Naomi Carrigan
+ */
+
+import { describe, it, expect } from "vitest";
+import { longestWord } from "./main.js";
+
+describe("longestWord", () => {
+  it("should return the correct longest word", () => {
+    expect(longestWord("The quick red fox")).toBe("quick");
+    expect(longestWord("Hello coding challenge.")).toBe("challenge");
+    expect(longestWord("Do Try This At Home.")).toBe("This");
+    expect(
+      longestWord(
+        "This sentence... has commas, ellipses, and an exlamation point!",
+      ),
+    ).toBe("exlamation");
+    expect(longestWord("A tie? No way!")).toBe("tie");
+    expect(longestWord("Wouldn't you like to know.")).toBe("Wouldnt");
+  });
+});

src/freecodecamp/daily/2025-11-20/main.ts

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+/**
+ * @copyright NHCarrigan
+ * @license Naomi's Public License
+ * @author Naomi Carrigan
+ */
+
+/**
+ * Given a sentence string, return the longest word in the sentence.
+ * @param sentence - The sentence to find the longest word in.
+ * @returns The longest word in the sentence.
+ * @see https://www.freecodecamp.org/learn/daily-coding-challenge/2025-11-20
+ */
+const longestWord = (sentence: string): string => {
+  // eslint-disable-next-line @typescript-eslint/no-non-null-assertion -- We know the array will not be empty.
+  return sentence.split(" ").map((word) => {
+    return word.replaceAll(/[^A-Za-z]/g, "");
+  }).
+    sort((a, b) => {
+      return b.length - a.length;
+    })[0]!;
+};
+
+export { longestWord };