CodeYourFuture · 85pouya · Mar 7, 2023 · Mar 11, 2023 · Mar 12, 2023
diff --git a/.vscode/launch.json b/.vscode/launch.json
@@ -0,0 +1,24 @@
+{
+    "configurations": [
+        {
+            "type": "node",
+            "name": "vscode-jest-tests.v2",
+            "request": "launch",
+            "args": [
+                "test",
+                "--",
+                "--runInBand",
+                "--watchAll=false",
+                "--testNamePattern",
+                "${jest.testNamePattern}",
+                "--runTestsByPath",
+                "${jest.testFile}"
+            ],
+            "cwd": "c:\\Users\\pnasr\\OneDrive\\Documents\\GitHub\\RecipeCoursework\\JavaScript-Core-1-Coursework-Week3",
+            "console": "integratedTerminal",
+            "internalConsoleOptions": "neverOpen",
+            "disableOptimisticBPs": true,
+            "runtimeExecutable": "npm"
+        }
+    ]
+}
diff --git a/1-exercises/A-undefined/exercise.js b/1-exercises/A-undefined/exercise.js
@@ -10,11 +10,13 @@
 */
 
 // Example 1
+// 'a' is not assigned to anything, so it treats as an undefined data.
 let a;
 console.log(a);
 
 
 // Example 2
+// 'message' is not defined before it is used.
 function sayHello() {
     let message = "Hello";
 }
@@ -24,6 +26,7 @@ console.log(hello);
 
 
 // Example 3
+// There is no data in sayHelloToUser to place as user.
 function sayHelloToUser(user) {
     console.log(`Hello ${user}`);
 }
@@ -32,5 +35,6 @@ sayHelloToUser();
 
 
 // Example 4
+// The array arr has 3 indexes which are [0], [1] and [2]. So there is no index 3.
 let arr = [1,2,3];
 console.log(arr[3]);
diff --git a/1-exercises/B-array-literals/exercise.js b/1-exercises/B-array-literals/exercise.js
@@ -4,15 +4,14 @@
   Declare some variables assigned to arrays of values
 */
 
-let numbers = []; // add numbers from 1 to 10 into this array
-let mentors; // Create an array with the names of the mentors: Daniel, Irina and Rares
+let numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]; // add numbers from 1 to 10 into this array
+let mentors = ["Daniel", "Irina", "Rares"]; // Create an array with the names of the mentors: Daniel, Irina and Rares
 
 /* 
   DO NOT EDIT BELOW THIS LINE
   --------------------------- */
 console.log(numbers);
 console.log(mentors);
-
 /* 
   EXPECTED RESULT
   ---------------

diff --git a/1-exercises/C-array-get-set/exercise.js b/1-exercises/C-array-get-set/exercise.js
@@ -5,11 +5,13 @@
 */
 
 function first(arr) {
-  return; // complete this statement
+  let f=arr[0];
+  return(f); // complete this statement
 }
 
 function last(arr) {
-  return; // complete this statement
+  let l=arr[arr.length-1];
+  return(l); // complete this statement
 }
 
 /* 

diff --git a/1-exercises/C-array-get-set/exercises2.js b/1-exercises/C-array-get-set/exercises2.js
@@ -8,6 +8,7 @@
 
 let numbers = [1, 2, 3]; // Don't change this array literal declaration
 
+numbers.push(4);
 /* 
   DO NOT EDIT BELOW THIS LINE
   --------------------------- */

diff --git a/1-exercises/D-for-loop/exercise.js b/1-exercises/D-for-loop/exercise.js
@@ -27,7 +27,17 @@ const AGES = [
 ];
 
 // TODO - Write for loop code here
-
+ function matchValues(WRITERS, AGES){
+    for (let i = 0; i < WRITERS.length; i++){
+        output = console.log(`${WRITERS[i]} is ${AGES[i]} years old`)
+        }
+    }
+ matchValues(WRITERS, AGES)
+// for (let names of WRITERS){
+//     for (let ages of AGES){
+//         console.log(`${names} is ${ages} years old`)
+//     }
+// }
 /*
 The output should look something like this:
 

diff --git a/1-exercises/E-while-loop-with-array/exercise.js b/1-exercises/E-while-loop-with-array/exercise.js
@@ -16,8 +16,15 @@ const BIRTHDAYS = [
     "November 15th"
 ];
 
-function findFirstJulyBDay(birthdays) {
-    // TODO
-}
 
+function findFirstJulyBDay(birthdays) {   
+    let i = 0;
+    let birthdaysLength = birthdays.length;
+    while(i < birthdaysLength) {
+        if (birthdays[i].includes("July")){
+            return birthdays[i];
+        }
+        i++;
+}
+}
 console.log(findFirstJulyBDay(BIRTHDAYS)); // should output "July 11th"
diff --git a/2-mandatory/1-weather-report.js b/2-mandatory/1-weather-report.js
@@ -12,8 +12,11 @@
 */
 
 function getTemperatureReport(cities) {
-    // TODO
-}
+    const temperatureReport = cities.map(city => {
+        return `The temperature in ${city} is ${temperatureService(city)} degrees`
+});
+    return temperatureReport
+    }
 
 
 /* ======= TESTS - DO NOT MODIFY ===== */
@@ -60,4 +63,4 @@ test("should return a temperature report for the user's cities (alternate input)
 
 test("should return an empty array if the user hasn't selected any cities", () => {
     expect(getTemperatureReport([])).toEqual([]);
-});
+});
diff --git a/2-mandatory/2-financial-times.js b/2-mandatory/2-financial-times.js
@@ -5,7 +5,13 @@
     Implement the function below, which will return a new array containing only article titles which will fit.
 */
 function potentialHeadlines(allArticleTitles) {
-    // TODO
+    let titles = [];
+    for (let articleTitle of allArticleTitles){
+        if (articleTitle.length <= 65 ) {
+            titles.push(articleTitle);
+        }
+    }
+    return titles;
 }
 
 /*
@@ -14,7 +20,9 @@ function potentialHeadlines(allArticleTitles) {
     (you can assume words will always be seperated by a space)
 */
 function titleWithFewestWords(allArticleTitles) {
-    // TODO
+
+    const fewestWord = (left, right) => left.length <= right.length ? left : right;
+    return allArticleTitles.reduce(fewestWord);
 }
 
 /*
@@ -23,17 +31,35 @@ function titleWithFewestWords(allArticleTitles) {
     (Hint: remember that you can also loop through the characters of a string if you need to)
 */
 function headlinesWithNumbers(allArticleTitles) {
-    // TODO
+    newList = [];
+    for (headline of allArticleTitles){
+        if (/\d/.test(headline) == true){
+            newList.push(headline);
+        }
+    }
+    return newList;
 }
 
 /*
     The Financial Times wants to understand what the average number of characters in an article title is.
     Implement the function below to return this number - rounded to the nearest integer.
 */
 function averageNumberOfCharacters(allArticleTitles) {
-    // TODO
-}
+//     var total = 0;
+//     var count = 0;
+
+//     allArticleTitles.forEach(averageNumberOfCharacters(item, index) {
+//         total += item;
+//         count += 1;
+//     });
 
+//     return total / count;
+
+                   // works with numbers too
+avg = Math.round(allArticleTitles.join('').length / allArticleTitles.length)
+
+return avg;
+ }
 
 
 /* ======= List of Articles - DO NOT MODIFY ===== */
@@ -50,6 +76,7 @@ const ARTICLE_TITLES = [
     "Brussels urges Chile's incoming president to endorse EU trade deal",
 ];
 
+potentialHeadlines(ARTICLE_TITLES)
 /* ======= TESTS - DO NOT MODIFY ===== */
 
 test("should only return potential headlines", () => {
@@ -79,3 +106,4 @@ test("should only return headlines containing numbers", () => {
 test("should return the average number of characters in a headline", () => {
     expect(averageNumberOfCharacters(ARTICLE_TITLES)).toEqual(65);
 });
+
diff --git a/2-mandatory/3-stocks.js b/2-mandatory/3-stocks.js
@@ -11,11 +11,11 @@
 const STOCKS = ["aapl", "msft", "amzn", "googl", "tsla"];
 
 const CLOSING_PRICES_LAST_5_DAYS_FOR_ALL_STOCKS = [
-    [179.19, 180.33, 176.28, 175.64, 172.99], // AAPL
-    [340.69, 342.45, 334.69, 333.20, 327.29], // MSFT
-    [3384.44, 3393.39, 3421.37, 3420.74, 3408.34], // AMZN
-    [2951.88, 2958.13, 2938.33, 2928.30, 2869.45], // GOOGL
-    [1101.30, 1093.94, 1067.00, 1008.87, 938.53] // TSLA
+  [179.19, 180.33, 176.28, 175.64, 172.99], // AAPL
+  [340.69, 342.45, 334.69, 333.2, 327.29], // MSFT
+  [3384.44, 3393.39, 3421.37, 3420.74, 3408.34], // AMZN
+  [2951.88, 2958.13, 2938.33, 2928.3, 2869.45], // GOOGL
+  [1101.3, 1093.94, 1067.0, 1008.87, 938.53], // TSLA
 ];
 
 /*
@@ -34,7 +34,16 @@ const CLOSING_PRICES_LAST_5_DAYS_FOR_ALL_STOCKS = [
         Functions can help with this!
 */
 function getAveragePrices(closingPricesForAllStocks) {
-    // TODO
+  finalList = [];
+  for (let eachList of CLOSING_PRICES_LAST_5_DAYS_FOR_ALL_STOCKS) {
+    let total = 0;
+    for (let items of eachList) {
+      total += items;
+    }
+    let average = total.toFixed(2) / eachList.length;
+    finalList.push(Number(average.toFixed(2)));
+  }
+  return finalList;
 }
 
 /*
@@ -48,7 +57,12 @@ function getAveragePrices(closingPricesForAllStocks) {
     The price change value should be rounded to 2 decimal places, and should be a number (not a string)
 */
 function getPriceChanges(closingPricesForAllStocks) {
-    // TODO
+  finalList = [];
+  for (let item of CLOSING_PRICES_LAST_5_DAYS_FOR_ALL_STOCKS) {
+    priceChange = item[4] - item[0];
+    finalList.push(Number(priceChange.toFixed(2)));
+  }
+  return finalList;
 }
 
 /*
@@ -64,31 +78,73 @@ function getPriceChanges(closingPricesForAllStocks) {
     The price should be shown with exactly 2 decimal places.
 */
 function highestPriceDescriptions(closingPricesForAllStocks, stocks) {
-    // TODO
-}
+  let highestPrices = [];
+  let uppercaseList = [];
+  let finalList = [];
+
+  for (let item of stocks) {
+    var uppercase = String(item).toUpperCase();
+    uppercaseList.push(uppercase);
+  }
+
+  for (let list of closingPricesForAllStocks) {
+    var max = list.reduce((a, b) => Math.max(a, b));
+    highestPrices.push(max.toFixed(2));
+  }
+
+  let i = 0;
+  let arrayLength = uppercaseList.length;
+  do {
+    var txt = `The highest price of ${uppercaseList[i]} in the last 5 days was ${highestPrices[i]}`;
+    finalList.push(txt);
+    i++;
+  } while (i < arrayLength);
+  return finalList;
 
+//   I tried many different ways to use for loop or Map methods, but none of them worked!
+  //   for (let item of uppercaseList) {
+  //     for (let maxprice of highestPrices){
+  //         var x = `The highest price of ${item} in the last 5 days was ${maxprice}`;
+  //         finalList.push(x);
+  //     }
+  //     return finalList;
+  //   }
+
+  // const pricemap = new Map();
+  // pricemap.set(uppercaseList, highestPrices);
+  // for (item of stocks){
+  //   pricemap.forEach(function (value, key) {
+
+  //     for (const x of pricemap.keys()){
+  //       for (const y of pricemap.values()){
+
+  //           finalList += `The highest price of ${x} in the last 5 days was ${y}`;
+  //       };
+  //     };
+  //   return finalList;
+}
 
 /* ======= TESTS - DO NOT MODIFY ===== */
 test("should return the average price for each stock", () => {
-    expect(getAveragePrices(CLOSING_PRICES_LAST_5_DAYS_FOR_ALL_STOCKS)).toEqual(
-        [176.89, 335.66, 3405.66, 2929.22, 1041.93]
-    );
+  expect(getAveragePrices(CLOSING_PRICES_LAST_5_DAYS_FOR_ALL_STOCKS)).toEqual([
+    176.89, 335.66, 3405.66, 2929.22, 1041.93,
+  ]);
 });
 
 test("should return the price change for each stock", () => {
-    expect(getPriceChanges(CLOSING_PRICES_LAST_5_DAYS_FOR_ALL_STOCKS)).toEqual(
-        [-6.2, -13.4, 23.9, -82.43, -162.77]
-    );
+  expect(getPriceChanges(CLOSING_PRICES_LAST_5_DAYS_FOR_ALL_STOCKS)).toEqual([
+    -6.2, -13.4, 23.9, -82.43, -162.77,
+  ]);
 });
 
 test("should return a description of the highest price for each stock", () => {
-    expect(highestPriceDescriptions(CLOSING_PRICES_LAST_5_DAYS_FOR_ALL_STOCKS, STOCKS)).toEqual(
-        [
-            "The highest price of AAPL in the last 5 days was 180.33",
-            "The highest price of MSFT in the last 5 days was 342.45",
-            "The highest price of AMZN in the last 5 days was 3421.37",
-            "The highest price of GOOGL in the last 5 days was 2958.13",
-            "The highest price of TSLA in the last 5 days was 1101.30"
-        ]
-    );
+  expect(
+    highestPriceDescriptions(CLOSING_PRICES_LAST_5_DAYS_FOR_ALL_STOCKS, STOCKS)
+  ).toEqual([
+    "The highest price of AAPL in the last 5 days was 180.33",
+    "The highest price of MSFT in the last 5 days was 342.45",
+    "The highest price of AMZN in the last 5 days was 3421.37",
+    "The highest price of GOOGL in the last 5 days was 2958.13",
+    "The highest price of TSLA in the last 5 days was 1101.30",
+  ]);
 });
-Original file line number
+Diff line change
@@ Expand Up / @@ -8,6 +8,7 @@ @@
     let numbers = [1, 2, 3]; // Don't change this array literal declaration
+    numbers.push(4);
     /*
       DO NOT EDIT BELOW THIS LINE
       --------------------------- */
@@ Expand Down @@