CodeYourFuture · Emeka1993 · Aug 19, 2022 · FranklinPTorres · Sep 9, 2022 · michellejanay
diff --git a/1-exercises/A-undefined/exercise.js b/1-exercises/A-undefined/exercise.js
@@ -12,12 +12,16 @@
 // Example 1
 let a;
 console.log(a);
+//the value is missing 
+
 
 
 // Example 2
 function sayHello() {
     let message = "Hello";
 }
+//the function is returning nothing
+
 
 let hello = sayHello();
 console.log(hello);

diff --git a/1-exercises/B-while-loop/exercise.js b/1-exercises/B-while-loop/exercise.js
@@ -4,10 +4,17 @@
     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 arrayOfEvenNumbers = [];
+    let i = 0;
+    while (n > arrayOfEvenNumbers.length) {
+      if (i % 2 === 0) {
+        arrayOfEvenNumbers.push(i);
+      }
+      i++;
+    }
+    console.log(arrayOfEvenNumbers);
+  }
 
 evenNumbers(3); // should output 0,2,4
 evenNumbers(0); // should output nothing

diff --git a/1-exercises/C-while-loop-with-array/exercise.js b/1-exercises/C-while-loop-with-array/exercise.js
@@ -3,21 +3,20 @@
     In the below example, imagine we've defined an array holding the birthdays of your closest friends.
     Use a while loop to search through the array until you find the first birthday in July, then return that birthday from the function.
 */
-
-const BIRTHDAYS = [
-    "January 7th",
-    "February 12th",
-    "April 3rd",
-    "April 5th",
-    "May 3rd",
-    "July 11th",
-    "July 17th",
-    "September 28th",
-    "November 15th"
-];
+while (condition) {
+    const BIRTHDAYS = [
+        "January 7th",
+        "February 12th",
+        "April 3rd",
+        "April 5th",
+        "May 3rd",
+        "July 11th",
+        "July 17th",
+        "September 28th",
+        "November 15th"
+    ];
+
+  }
 
 function findFirstJulyBDay(birthdays) {
-    // TODO
-}
-
-console.log(findFirstJulyBDay(BIRTHDAYS)); // should output "July 11th"
+    return (birthdays 
diff --git a/1-exercises/D-do-while/exercise.js b/1-exercises/D-do-while/exercise.js
@@ -6,10 +6,7 @@
     Using a do-while loop, write a function which returns the sum of the first n even numbers (starting from 0)
 */
 
-function evenNumbersSum(n) {
-    // TODO
+for (let i = 0; i < 11; i++) {
+    console.log(i*9);
 }
-
-console.log(evenNumbersSum(3)); // should output 6
-console.log(evenNumbersSum(0)); // should output 0
-console.log(evenNumbersSum(10)); // should output 90
+ // should output 90
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 (let 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
@@ -27,7 +27,10 @@ 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/1-exercises/F-for-of-loop/exercise.js b/1-exercises/F-for-of-loop/exercise.js
@@ -4,13 +4,20 @@
 
 // TODO Use a for-of loop to output each of the tube stations below.
 let tubeStations = [
-    "Aldgate",
-    "Baker Street",
+
     "Picadilly Circus",
-    "Oxford Street",
-    "Tottenham Court Road"
+
 ];
 
+for (stations of tubeStations){
+    console.log(stations)
+}
+
+
 
 // TODO Use a for-of loop to capitalise and output each letter in the string seperately.
+
 let str = "codeyourfuture";
+for (char of str){
+    console.log(char.toUpperCase())
+}
diff --git a/2-mandatory/1-weather-report.js b/2-mandatory/1-weather-report.js
@@ -13,9 +13,12 @@
 
 function getTemperatureReport(cities) {
     // TODO
+    let cityTemperatures = cities.map(city => `The temperature in ${city} is ${temperatureService(city)} degrees`)
+return cityTemperatures
 }
 
 
+
 /* ======= TESTS - DO NOT MODIFY ===== */
 
 function temperatureService(city) {

diff --git a/2-mandatory/2-retrying-random-numbers.js b/2-mandatory/2-retrying-random-numbers.js
@@ -11,7 +11,11 @@ function generateRandomNumber() {
 
 function getRandomNumberGreaterThan50() {
     // TODO - implement using a do-while loop
-}
+    do {
+        value =  generateRandomNumber()  
+     } while( value <= 50)
+     return value
+ }
 
 /* ======= TESTS - DO NOT MODIFY ===== */
 

diff --git a/2-mandatory/3-financial-times.js b/2-mandatory/3-financial-times.js
@@ -5,6 +5,9 @@
     Implement the function below, which will return a new array containing only article titles which will fit.
 */
 function potentialHeadlines(allArticleTitles) {
+    let selectedHeadings = allArticleTitles.filter(article => article.length <= 65);
+  return selectedHeadings;
+}
     // TODO
 }
 
@@ -14,7 +17,9 @@ function potentialHeadlines(allArticleTitles) {
     (you can assume words will always be seperated by a space)
 */
 function titleWithFewestWords(allArticleTitles) {
-    // TODO
+    let smallestArticle = allArticleTitles.reduce((initial, next) => (initial.length < next.length)? initial : next);
+    return smallestArticle;
+  }
 }
 
 /*
@@ -24,6 +29,15 @@ function titleWithFewestWords(allArticleTitles) {
 */
 function headlinesWithNumbers(allArticleTitles) {
     // TODO
+    let selectedHeadings = allArticleTitles.filter((element) => {
+        for (let i = 0; i < element.length; i++) {
+          if (parseInt(element[i])) {
+            return true;
+          }
+        }
+        return false;
+      });
+      return selectedHeadings;
 }
 
 /*
@@ -33,6 +47,12 @@ function headlinesWithNumbers(allArticleTitles) {
 function averageNumberOfCharacters(allArticleTitles) {
     // TODO
 }
+let totalCharacters = allArticleTitles.reduce((acc, curr) => acc + (curr.length), 0);
+
+  let average = totalCharacters / (allArticleTitles.length)
+
+  return Math.round(average);
+}
 
 
 

diff --git a/2-mandatory/4-stocks.js b/2-mandatory/4-stocks.js
@@ -34,7 +34,12 @@ const CLOSING_PRICES_LAST_5_DAYS_FOR_ALL_STOCKS = [
         Functions can help with this!
 */
 function getAveragePrices(closingPricesForAllStocks) {
-    // TODO
+    const average = closingPricesForAllStocks.map((arr) =>
+        arr.reduce((acc, curr) => acc + curr / arr.length, 0)
+    );
+    const roundedStockPrices = average.map((element) => parseFloat(element.toFixed(2)));
+    return roundedStockPrices;
+
 }
 
 /*
@@ -49,6 +54,13 @@ function getAveragePrices(closingPricesForAllStocks) {
 */
 function getPriceChanges(closingPricesForAllStocks) {
     // TODO
+    let changeInStocks = closingPricesForAllStocks.map(
+        (arr) => arr[arr.length - 1] - arr[0]
+    );
+
+    changeInStocks = changeInStocks.map((element) => parseFloat(element.toFixed(2)));
+
+    return changeInStocks;
 }
 
 /*
@@ -66,6 +78,19 @@ function getPriceChanges(closingPricesForAllStocks) {
 function highestPriceDescriptions(closingPricesForAllStocks, stocks) {
     // TODO
 }
+let arrayOfHighestPrices = closingPricesForAllStocks.map((arr) =>
+arr.reduce((acc, curr) => {
+    return acc > curr ? acc : curr;
+})
+);
+let stocksDescription = [];
+for (let i = 0; i< arrayOfHighestPrices.length; i++){
+stocksDescription.push(
+    `The highest price of ${(stocks[i]).toUpperCase()} in the last 5 days was ${(arrayOfHighestPrices[i]).toFixed(2)}`
+);
+} 
+return stocksDescription
+
 
 
 /* ======= TESTS - DO NOT MODIFY ===== */