CodeYourFuture · pamelss · Jan 5, 2023 · Jan 5, 2023 · Jan 5, 2023 · Jan 5, 2023
diff --git a/1-exercises/A-undefined/exercise.js b/1-exercises/A-undefined/exercise.js
@@ -13,6 +13,8 @@
 let a;
 console.log(a);
 
+//ANSWER the variable A had no value, if we tested on the terminal show "undefind" (no value in it)
+
 
 // Example 2
 function sayHello() {
@@ -22,6 +24,9 @@ function sayHello() {
 let hello = sayHello();
 console.log(hello);
 
+// ANSWER here the funtion is with a variable (sayHello). When we call the funtion this this should call the variable instead the message OR 
+//we can also call the message but it should be iside "" STRINGS
+
 
 // Example 3
 function sayHelloToUser(user) {
@@ -30,7 +35,13 @@ function sayHelloToUser(user) {
 
 sayHelloToUser();
 
+// Again USER is not defined with a VALUE and will only print the message in STRINGS "" (HELLO)
+
+
 
 // Example 4
 let arr = [1,2,3];
 console.log(arr[3]);
+
+// in JS it counts from 0. For this example if we want the last digit we call it number 2, 
+//then it will show number 3.
diff --git a/1-exercises/B-while-loop/exercise.js b/1-exercises/B-while-loop/exercise.js
@@ -3,12 +3,23 @@
 
     Using a while loop, complete the function below so it logs (using console.log) the first n even numbers as a comma-seperated string.
     The list of numbers should start with 0. n is being passed in as a parameter.
-*/
+// */
 
 function evenNumbers(n) {
     // TODO
-}
+    let result = [];
+    let i = 0;
+    while (i < n) {
+      result.push(i*2);
+      i++
+    }
+    console.log(result.join());
+  }
 
 evenNumbers(3); // should output 0,2,4
 evenNumbers(0); // should output nothing
 evenNumbers(10); // should output 0,2,4,6,8,10,12,14,16,18
+
+
+
+
diff --git a/1-exercises/C-while-loop-with-array/exercise.js b/1-exercises/C-while-loop-with-array/exercise.js
@@ -16,8 +16,18 @@ const BIRTHDAYS = [
     "November 15th"
 ];
 
-function findFirstJulyBDay(birthdays) {
+
     // TODO
-}
+
+    let i = 0;
+    while (i < BIRTHDAYS.length) {
+        if (BIRTHDAYS[i].startsWith("July")){
+            return BIRTHDAYS[i];
+        }
+        i++;
+    }
+
+
 
 console.log(findFirstJulyBDay(BIRTHDAYS)); // should output "July 11th"
+console.log("testing");
diff --git a/1-exercises/D-do-while/exercise.js b/1-exercises/D-do-while/exercise.js
@@ -7,7 +7,13 @@
 */
 
 function evenNumbersSum(n) {
-    // TODO
+    let sum = 0;
+    let i = 0;
+    do {
+        sum += (i*2);
+        i++;
+    } while (i < n);
+    return sum;
 }
 
 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
@@ -8,6 +8,7 @@
 // Change the below code to use a for loop instead of a while loop.
 let i = 0;
 while(i < 26) {
+    for (i =0; i < 26; i++)
     console.log(String.fromCharCode(97 + i));
     i++;
 }

diff --git a/1-exercises/E-for-loop/exercise2.js b/1-exercises/E-for-loop/exercise2.js
@@ -28,6 +28,10 @@ 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/2-mandatory/1-weather-report.js b/2-mandatory/1-weather-report.js
@@ -13,6 +13,13 @@
 
 function getTemperatureReport(cities) {
     // TODO
+    let cityTemp = [];
+    for (let city of cities){
+        cityTemp.push(
+            `The temeprature in ${city} is ${temperatureService(city)} degrees `
+        );
+    }
+    return cityTemp;
 }
 
 

diff --git a/2-mandatory/2-retrying-random-numbers.js b/2-mandatory/2-retrying-random-numbers.js
@@ -11,8 +11,14 @@ function generateRandomNumber() {
 
 function getRandomNumberGreaterThan50() {
     // TODO - implement using a do-while loop
+    let num = 0;
+    do { 
+        num = generateRandomNumber();
+    } while (num < 50);
+    return num;
 }
 
+
 /* ======= 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
@@ -6,15 +6,27 @@
 */
 function potentialHeadlines(allArticleTitles) {
     // TODO
+    let headline = []
+    for (article of allArticleTitles){
+    if (article.length > 50 ) headline.push(article) ;
+    }
+    return headline;
 }
 
+
 /*
     The editor of the FT likes short headlines with only a few words!
     Implement the function below, which returns the title with the fewest words.
     (you can assume words will always be seperated by a space)
 */
 function titleWithFewestWords(allArticleTitles) {
     // TODO
+    let lowestWords = [];
+    for (let i = 0; i< allArticleTitles.length; i++) {
+        lowestWords.push(allArticleTitles[i].split(' ').length)
+    }
+    return allArticleTitles[lowestWords.indexOf(Math.min(...lowestWords))]
+
 }
 
 /*
@@ -24,6 +36,13 @@ function titleWithFewestWords(allArticleTitles) {
 */
 function headlinesWithNumbers(allArticleTitles) {
     // TODO
+    let numberArray = [];
+    for (let article of allArticleTitles) {
+        if (/[0-9]/.test(article) === true) {
+            numberArray.push(article);
+        }
+    }
+    return numberArray;
 }
 
 /*
@@ -32,6 +51,11 @@ function headlinesWithNumbers(allArticleTitles) {
 */
 function averageNumberOfCharacters(allArticleTitles) {
     // TODO
+    let averageCharacter = [];
+    for (let i = 0; i < allArticleTitles.length; i++) {
+        averageCharacter += allArticleTitles[i].length
+    }
+    return Math.round(averageCharacter / allArticleTitles.length)
 }
 
 

diff --git a/2-mandatory/4-stocks.js b/2-mandatory/4-stocks.js
@@ -35,6 +35,19 @@ const CLOSING_PRICES_LAST_5_DAYS_FOR_ALL_STOCKS = [
 */
 function getAveragePrices(closingPricesForAllStocks) {
     // TODO
+    let price = [];
+    for (let individualArray of closingPricesForAllStocks) {
+        price.push(individualAverage(individualArray));
+    }
+    return price;
+
+}
+function individualAverage(array) {
+    let total = 0;
+    for (let closing of array) {
+        total += closing;
+    }
+    return Number(total / array.length).toFixed(2);
 }
 
 /*
@@ -49,6 +62,12 @@ function getAveragePrices(closingPricesForAllStocks) {
 */
 function getPriceChanges(closingPricesForAllStocks) {
     // TODO
+    let priceChanges = [getPriceChanges];
+    for (let priceArray of closingPricesForAllStocks) {
+        let priceChanges = [priceArray.length-1] - priceArray[0];
+        priceChanges.push(Number(priceChanges.toFixed(2)));
+    }
+    return priceChanges;
 }
 
 /*
@@ -65,6 +84,14 @@ function getPriceChanges(closingPricesForAllStocks) {
 */
 function highestPriceDescriptions(closingPricesForAllStocks, stocks) {
     // TODO
+    let maxedStock = [];
+    for (i = 0; i < stocks.length; i++) {
+        let capitaliseStock = stocks[i].toUpperCase();
+        let highestPrice = Math.max(...closingPricesForAllStocks[i]);
+        let decimalPrice = highestPrice.toFixed(2);
+        maxedStock.push(`The highest price of ${capitaliseStock} in the last 5 days was ${decimalPrice}`);
+    }
+    return maxedStock;
 }