CodeYourFuture · LN2410 · Jul 26, 2022
diff --git a/1-exercises/A-undefined/exercise.js b/1-exercises/A-undefined/exercise.js
@@ -12,25 +12,27 @@
 // Example 1
 let a;
 console.log(a);
-
+// a has no value assigned
 
 // Example 2
 function sayHello() {
     let message = "Hello";
 }
+// the function sayHello is not returned
 
 let hello = sayHello();
 console.log(hello);
-
+// the function is not returning anything
 
 // Example 3
 function sayHelloToUser(user) {
     console.log(`Hello ${user}`);
 }
-
+// the user parameter does not pass anything
 sayHelloToUser();
 
 
 // Example 4
 let arr = [1,2,3];
 console.log(arr[3]);
+// there is no index 3 in the array
diff --git a/1-exercises/B-while-loop/exercise.js b/1-exercises/B-while-loop/exercise.js
@@ -6,6 +6,14 @@
 */
 
 function evenNumbers(n) {
+    const arr = []
+    let i = 0
+
+    while (i < n) {
+        arr.push(i * 2);
+        i++;
+    }
+    console.log(arr.join(', '));
     // TODO
 }
 

diff --git a/1-exercises/C-while-loop-with-array/exercise.js b/1-exercises/C-while-loop-with-array/exercise.js
@@ -17,6 +17,15 @@ const BIRTHDAYS = [
 ];
 
 function findFirstJulyBDay(birthdays) {
+    let i = 0;
+
+    while (i < birthdays.length - 1) {
+        let birthdayCheck = birthdays[i];
+        if (birthdayCheck.startsWith("July")) {
+            return birthdayCheck;
+        }
+        i++;
+    }
     // TODO
 }
 

diff --git a/1-exercises/D-do-while/exercise.js b/1-exercises/D-do-while/exercise.js
@@ -8,6 +8,14 @@
 
 function evenNumbersSum(n) {
     // TODO
+    let sumNum = 0;
+    let i = 0;
+
+    do {
+        sumNum = sumNum + i * 2;
+        i++;
+    } while (i < n);
+    return sumNum;
 }
 
 console.log(evenNumbersSum(3)); // should output 6

diff --git a/1-exercises/E-for-loop/exercise1.js b/1-exercises/E-for-loop/exercise1.js
@@ -6,9 +6,12 @@
 
 
 // Change the below code to use a for loop instead of a while loop.
-let i = 0;
-while(i < 26) {
-    console.log(String.fromCharCode(97 + i));
-    i++;
-}
+// let i = 0;
+// while(i < 26) {
+//     console.log(String.fromCharCode(97 + i));
+//     i++;
+// }
 // The output shouldn't change.
+for (let i = 0; i < 26 ; i++) {
+    console.log(String.fromCharCode(97 + i));
+}
diff --git a/1-exercises/E-for-loop/exercise2.js b/1-exercises/E-for-loop/exercise2.js
@@ -27,6 +27,9 @@ const AGES = [
 ];
 
 // TODO - Write for loop code here
+for (let i = 0; i < WRITERS.length; i++) {
+    console.log(`${WRITERS[i]} is ${AGES[i]} years old`)
+}
 
 /*
 The output should look something like this:

diff --git a/1-exercises/F-for-of-loop/exercise.js b/1-exercises/F-for-of-loop/exercise.js
@@ -11,6 +11,12 @@ let tubeStations = [
     "Tottenham Court Road"
 ];
 
+for (const station of tubeStations) {
+    console.log(station.toUpperCase());
+}
 
 // TODO Use a for-of loop to capitalise and output each letter in the string seperately.
 let str = "codeyourfuture";
+for (const letter of str) {
+    console.log(letter.toUpperCase());
+}
diff --git a/2-mandatory/1-weather-report.js b/2-mandatory/1-weather-report.js
@@ -13,6 +13,12 @@
 
 function getTemperatureReport(cities) {
     // TODO
+    let arrTemp = [];
+
+    for (let city of cities) {
+        arrTemp.push(`The temperature in ${city} is ${temperatureService(city)} degrees`);
+    }
+    return arrTemp;
 }
 
 

diff --git a/2-mandatory/2-retrying-random-numbers.js b/2-mandatory/2-retrying-random-numbers.js
@@ -11,8 +11,15 @@ function generateRandomNumber() {
 
 function getRandomNumberGreaterThan50() {
     // TODO - implement using a do-while loop
+    let number = 0;
+    do {
+        number = generateRandomNumber();
+    } while (number <= 50);
+
+    return number;
 }
 
+
 /* ======= TESTS - DO NOT MODIFY ===== */
 
 test("Returned value should always be greater than 50", () => {

diff --git a/2-mandatory/3-financial-times.js b/2-mandatory/3-financial-times.js
@@ -6,6 +6,15 @@
 */
 function potentialHeadlines(allArticleTitles) {
     // TODO
+
+    let titles = [];
+
+    for (const title in allArticleTitles) {
+        if (titles.length <= 65) {
+            titles.push(title);
+        }
+    }
+    return titles;  
 }
 
 /*
@@ -15,6 +24,17 @@ function potentialHeadlines(allArticleTitles) {
 */
 function titleWithFewestWords(allArticleTitles) {
     // TODO
+    let fewWords = allArticleTitles[0];
+    let words = allArticleTitles[0].split(" ").length;
+
+    for (let i = 0; i < allArticleTitles.length; i++) {
+        let theWordArrapy = allArticleTitles[i].split(" ").length;
+        if (theWordArray < words) {
+            fewWords = allArticleTitles[i];
+        }
+        words = theWordArrapy;
+    }
+    return fewWords;
 }
 
 /*
@@ -24,6 +44,7 @@ function titleWithFewestWords(allArticleTitles) {
 */
 function headlinesWithNumbers(allArticleTitles) {
     // TODO
+
 }
 
 /*

diff --git a/3-extra/1-factorial.js b/3-extra/1-factorial.js
diff --git a/3-extra/2-array-of-objects.js b/3-extra/2-array-of-objects.js
diff --git a/3-extra/3-fibonacci.js b/3-extra/3-fibonacci.js