CodeYourFuture · baharbazargan62 · Sep 18, 2022 · Sep 23, 2022
diff --git a/1-exercises/B-while-loop/exercise.js b/1-exercises/B-while-loop/exercise.js
@@ -6,9 +6,21 @@
 */
 
 function evenNumbers(n) {
-    // TODO
+  // TODO
+  // const arr =[];
+  // for (let i=0;i<(n*2);i+=2){
+  //      arr.push(i);
+  // }
+  // return arr;
+  const arr = [];
+  let i = 0;
+  while (i < n * 2) {
+    arr.push(i);
+    i += 2;
+  }
+  return arr;
 }
 
-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
+console.log(evenNumbers(3)); // should output 0,2,4
+console.log(evenNumbers(0)); // should output nothing
+console.log(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
@@ -18,6 +18,13 @@ const BIRTHDAYS = [
 
 function findFirstJulyBDay(birthdays) {
     // TODO
+    let i=0;
+    while (i<BIRTHDAYS.length){
+        if (  BIRTHDAYS[i].includes("July")){
+            return BIRTHDAYS[i];
+        }
+        i++;  
+    }  
 }
 
 console.log(findFirstJulyBDay(BIRTHDAYS)); // should output "July 11th"
diff --git a/1-exercises/D-do-while/exercise.js b/1-exercises/D-do-while/exercise.js
@@ -7,7 +7,14 @@
 */
 
 function evenNumbersSum(n) {
-    // TODO
+let i = 0;
+let sum =0;
+do {
+  sum += i ;
+  i+=2;
+}
+while (i < n*2);
+ 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
@@ -6,9 +6,8 @@
 
 
 // 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++;
 }
 // The output shouldn't change.
diff --git a/1-exercises/E-for-loop/exercise2.js b/1-exercises/E-for-loop/exercise2.js
@@ -25,7 +25,9 @@ const AGES = [
     63,
     49
 ];
-
+for ( i= 0;i<WRITERS.length;i++){
+    console.log(`${WRITERS[i]} is ${AGES[i]} years old.`)
+}
 // TODO - Write for loop code here
 
 /*

diff --git a/1-exercises/F-for-of-loop/exercise.js b/1-exercises/F-for-of-loop/exercise.js
@@ -11,6 +11,13 @@ let tubeStations = [
     "Tottenham Court Road"
 ];
 
+for (let x of tubeStations) {
+    console.log(x)
+  }
+
 
 // TODO Use a for-of loop to capitalise and output each letter in the string seperately.
 let str = "codeyourfuture";
+for (let x of str){
+    console.log(x.toUpperCase())
+}
diff --git a/2-mandatory/1-weather-report.js b/2-mandatory/1-weather-report.js
@@ -13,9 +13,15 @@
 
 function getTemperatureReport(cities) {
     // TODO
+    let arr =[];
+    for (let city of cities){
+        arr.push(`The temperature in ${city} is ${temperatureService(city)} degrees`);
+    }
+    return arr;
 }
 
 
+
 /* ======= 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
@@ -11,6 +11,11 @@ function generateRandomNumber() {
 
 function getRandomNumberGreaterThan50() {
     // TODO - implement using a do-while loop
+    let randomNumber =0;
+    do {
+          randomNumber = generateRandomNumber()
+    }while (randomNumber <= 50);
+    return randomNumber;
 }
 
 /* ======= TESTS - DO NOT MODIFY ===== */

diff --git a/2-mandatory/3-financial-times.js b/2-mandatory/3-financial-times.js
@@ -6,24 +6,51 @@
 */
 function potentialHeadlines(allArticleTitles) {
     // TODO
-}
-
+    const arr = [];
+  for ( let x of allArticleTitles){
+     if (x.length<= 65 ) {
+        arr.push(allArticleTitles);
+     }
+     return arr;
+  }
 /*
     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 i = 0;
+// let j;
+// while (i < allArticleTitles.length) {
+// j = i + 1;
+// while (j < allArticleTitles.length) {
+// if (allArticleTitles[j] < allArticleTitles[i]) {
+// let tempStr = allArticleTitles[i];
+// allArticleTitles[i] = allArticleTitles[j];
+// allArticleTitles[j] = tempStr;
+// }
+// j++;
+// }
+// i++;
+// }
+// return allArticleTitles[0];
 }
 
+
 /*
     The editor of the FT has realised that headlines which have numbers in them get more clicks!
     Implement the function below to return a new array containing all the headlines which contain a number.
     (Hint: remember that you can also loop through the characters of a string if you need to)
 */
 function headlinesWithNumbers(allArticleTitles) {
-    // TODO
+    // const arr=[];
+    // for (i=0 ;i<allArticleTitles.length;i++){
+    //     if (allArticleTitles[i].match([0-9]/g)){
+    //          arr.push(allArticleTitles[i]);
+    return allArticleTitles.filter((element) => {
+        return /\d/.test(element);
+      });
 }
 
 /*
@@ -32,6 +59,12 @@ function headlinesWithNumbers(allArticleTitles) {
 */
 function averageNumberOfCharacters(allArticleTitles) {
     // TODO
+    let sum =0;
+    for ( let i=0 ;i<allArticleTitles.length;i++){
+      sum +=allArticleTitles[i].length  ;
+    }
+   const average =Math.round(sum /allArticleTitles.length)
+   return average;
 }
 
 

diff --git a/2-mandatory/4-stocks.js b/2-mandatory/4-stocks.js
@@ -35,8 +35,20 @@ const CLOSING_PRICES_LAST_5_DAYS_FOR_ALL_STOCKS = [
 */
 function getAveragePrices(closingPricesForAllStocks) {
     // TODO
+    let sum = 0;
+    let arr =[];
+     let average =[];
+    for ( let i=0;i<closingPricesForAllStocks.length;i++){
+       for (let j=0 ;j<closingPricesForAllStocks[i].lenght;j++){
+          sum+=closingPricesForAllStocks[i][j];
+       }
+     arr[i].push(sum);
+     average.push(arr[i] / closingPricesForAllStocks[i].length);
+    }
+    return average;
 }
 
+
 /*
     We also want to see what the change in price is from the first day to the last day for each stock.
     Implement the below function, which
@@ -49,6 +61,11 @@ function getAveragePrices(closingPricesForAllStocks) {
 */
 function getPriceChanges(closingPricesForAllStocks) {
     // TODO
+
+    (for let x of closingPricesForAllStocks){
+
+
+    }
 }
 
 /*
@@ -65,6 +82,7 @@ function getPriceChanges(closingPricesForAllStocks) {
 */
 function highestPriceDescriptions(closingPricesForAllStocks, stocks) {
     // TODO
+    (for )
 }
 
 

diff --git a/3-extra/1-factorial.js b/3-extra/1-factorial.js
@@ -10,6 +10,11 @@
 
 function factorial(input) {
     // TODO
+    let factorial =1;
+   for (let i=input; i>0 ;i--){
+    factorial*=i
+   }
+   return factorial;
 }
 
 /* ======= TESTS - DO NOT MODIFY ===== */

diff --git a/3-extra/2-array-of-objects.js b/3-extra/2-array-of-objects.js
@@ -12,6 +12,14 @@
 
 function getHighestRatedInEachGenre(books) {
     // TODO
+   let arr=[];
+    for(let i=0;i<BOOKS.length;i++){
+       arr.push(Math.max(BOOKS[i].rating));
+    for(let j=0;j<arr.length;j++){
+        delete arr[j].rating
+        return 
+    }
+    return arr;
 }
 
 

diff --git a/3-extra/3-fibonacci.js b/3-extra/3-fibonacci.js
@@ -14,24 +14,31 @@
 */
 
 function generateFibonacciSequence(n) {
-    // TODO
+  if (n<3){
+    return 1;
+  }else{
+  const sum =[0,1]
+  for(let x= 2;x < n; x++){
+      sum[x]=sum[x-1]+sum[x-2]
+      sum.push[sum[x]]
+  }
+ return sum;
+}
 }
 
 /* ======= TESTS - DO NOT MODIFY ===== */
 test("should return the first 10 numbers in the Fibonacci Sequence", () => {
-    expect(generateFibonacciSequence(10)).toEqual(
-        [0, 1, 1, 2, 3, 5, 8, 13, 21, 34]
-    );
+  expect(generateFibonacciSequence(10)).toEqual([
+    0, 1, 1, 2, 3, 5, 8, 13, 21, 34,
+  ]);
 });
 
 test("should return the first 5 numbers in the Fibonacci Sequence", () => {
-    expect(generateFibonacciSequence(5)).toEqual(
-        [0, 1, 1, 2, 3]
-    );
+  expect(generateFibonacciSequence(5)).toEqual([0, 1, 1, 2, 3]);
 });
 
 test("should return the first 15 numbers in the Fibonacci Sequence", () => {
-    expect(generateFibonacciSequence(15)).toEqual(
-        [0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377]
-    );
-});
+  expect(generateFibonacciSequence(15)).toEqual([
+    0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377,
+  ]);
+});
-Original file line number
+Diff line change
@@ Expand Up / @@ -25,7 +25,9 @@ const AGES = [ @@
 ,
     ];
+    for ( i= 0;i<WRITERS.length;i++){
+        console.log(`${WRITERS[i]} is ${AGES[i]} years old.`)
+    }
     // TODO - Write for loop code here
     /*
@@ Expand Down @@