James Brett code challenge

src/dateString.test.js

@@ -2,7 +2,7 @@ import test from 'ava';
 import moment from 'moment';
 import { dateString } from './index';
 
-if (dateString()) {
+if (dateString('d') != null) {
   test('Nominal', t => {
     const actual = 1485470818000;
     const expected = 'January 26, 2017';

src/index.js

@@ -1,21 +1,48 @@
-
+import moment from "moment";
 /**
  * CODING CHALLENGE 1
  * @param {String} str the string to format
  * @see `codingChallenge.md` for instructions
  */
-export function titleCase (str) {
+export function titleCase(str) {
   // CODE HERE
-  return false;
+  try {
+    if (str != null) {
+      const strReplace = str.replace(/[^a-zA-Z0-9]+/g, " ");
+      const lowCase = strReplace.toLowerCase().trim();
+      const splitWords = lowCase.split(" ");
+
+      for (let i = 0; i < splitWords.length; i++) {
+        splitWords[i] =
+          splitWords[i][0].toUpperCase() + splitWords[i].substr(1);
+      }
+
+      return splitWords.join(" ");
+    }
+  } catch (error) {
+    throw new Error("Null Input");
+  }
 }
 
 /**
  * CODING CHALLENGE 2
  * @param {Number} timestamp the timestamp to format
  * @see `codingChallenge.md` for instructions
  */
-export function dateString (timestamp) {
+export function dateString(timestamp) {
   // CODE HERE
-  return false;
-}
 
+  try {
+    if (!timestamp && !null) {
+      const today = new moment().format("MMMM D, YYYY");
+      return today;
+    } else if (timestamp != null) {
+      const toDate = new Date(timestamp);
+      let formattedDate = moment(toDate).format("MMMM D, YYYY");
+
+      return formattedDate;
+    }
+  } catch (error) {
+    throw new Error("Null Input");
+  }
+}