Move some exercises to manadatory

The manadatory exercises didn't include some concepts that were covered in the lesson, so I've just moved some of the in-class exercises into the mandatory section. Looks like the exercises in the syllabus don't match the in-class exercises now anyway

Author: 40thieves

1-exercises/A-array-find/exercise.js

@@ -42,6 +42,14 @@ Write a function that:
 
 function formatPercentage() {}
 
+/*
+Write a function that:
+- Takes an array as a parameter
+- Returns the *first* name which starts with A and is longer than 7 letters.
+*/
+
+function findLongNameThatStartsWithA() {}
+
 /* 
 ===================================================
 ======= TESTS - DO NOT MODIFY BELOW THIS LINE =====
@@ -145,3 +153,19 @@ test("formatPercentage function works", () => {
     "0.37%",
   ]);
 });
+
+test("findLongNameThatStartsWithA function works", () => {
+  expect(
+    findLongNameThatStartsWithA([
+      "Rakesh",
+      "Antonio",
+      "Alexandra",
+      "Andronicus",
+      "Annam",
+      "Mikey",
+      "Anastasia",
+      "Karim",
+      "Ahmed",
+    ])
+  ).toEqual("Alexandra");
+});

1-exercises/F-array-forEach/exercise.js

@@ -0,0 +1,28 @@
+/*
+  Write a function that accepts a string as a parameter and returns a string where the first letter of the input string is uppercase.
+  For example, capitalize("hello") should return "Hello"
+  Tip: use the string method .split() and the array method .join()
+*/
+
+function capitalize(str) {}
+
+/* 
+===================================================
+======= TESTS - DO NOT MODIFY BELOW THIS LINE =====
+There are some Tests in this file that will help you work out if your code is working.
+To run the tests for just this one file, type `npm test -- --testPathPattern 10-capitalize` into your terminal
+(Reminder: You must have run `npm install` one time before this will work!)
+===================================================
+*/
+
+test("Capitalize works - case 1", () => {
+  expect(capitalize("hello")).toEqual("Hello");
+});
+
+test("Capitalize works - case 2", () => {
+  expect(capitalize("daniel")).toEqual("Daniel");
+});
+
+test("Capitalize works - case 2", () => {
+  expect(capitalize("ivina")).toEqual("Ivina");
+});

1-exercises/G-array-methods/exercise2.js

@@ -0,0 +1,28 @@
+/*
+  Write a function that accepts a name of a country as a string and returns true or false whether the country is in the UK.
+*/
+
+const ukNations = ["Scotland", "Wales", "England", "Northern Ireland"];
+
+function isInUK(country) {}
+
+/* 
+===================================================
+======= TESTS - DO NOT MODIFY BELOW THIS LINE =====
+There are some Tests in this file that will help you work out if your code is working.
+To run the tests for just this one file, type `npm test -- --testPathPattern 11-is-in-uk` into your terminal
+(Reminder: You must have run `npm install` one time before this will work!)
+===================================================
+*/
+
+test("isInUK works - case 1", () => {
+  expect(isInUK("France")).toEqual(false);
+});
+
+test("isInUK works - case 2", () => {
+  expect(isInUK("Republic of Ireland")).toEqual(false);
+});
+
+test("isInUK works - case 3", () => {
+  expect(isInUK("England")).toEqual(true);
+});

1-exercises/H-array-methods-2/exercise2.js

@@ -0,0 +1,33 @@
+/*
+  Write a function that accepts two arrays as parameters:
+  1. An array of volunteer names
+  2. An array of trainee names
+
+  The function should return a single array containing *both* the volunteers and trainee names.
+*/
+
+function groupPeople() {}
+
+/* 
+===================================================
+======= TESTS - DO NOT MODIFY BELOW THIS LINE =====
+There are some Tests in this file that will help you work out if your code is working.
+To run the tests for just this one file, type `npm test -- --testPathPattern 2-oxygen-levels` into your terminal
+(Reminder: You must have run `npm install` one time before this will work!)
+===================================================
+*/
+
+TestScheduler("volunteersAndTrainees works", () => {
+  let volunteers = ["Daniel", "Irina", "Rares"];
+  let trainees = ["Rukmini", "Abdul", "Austine", "Swathi"];
+
+  expect(groupPeople(volunteers, trainees)).toEqual([
+    "Daniel",
+    "Irina",
+    "Rares",
+    "Rukmini",
+    "Abdul",
+    "Austine",
+    "Swathi",
+  ]);
+});