Ahmed Al-Mohammed & Dana AL-Dulijan

src/challenge.ts

@@ -9,6 +9,9 @@
 // logger<number | string>([1, 2, 3, "one", "two", "three"]);
 function logger<T>(array: T[]): void {
   // write your code here...
+  array.forEach((element) => {
+    console.log(element);
+  });
 }
 
 // `toCelsius` function that:
@@ -19,8 +22,8 @@ function logger<T>(array: T[]): void {
 // toCelsius([32, 68, 100, 212]); // => [0, 20, 37.7778, 100]
 function toCelsius(temperatures: number[]): number[] {
   // write your code here...
-
-  return []; // replace empty array with what you see is fit
+  const Celsius: number[] = temperatures.map((n) => (n - 32) * (5 / 9));
+  return Celsius; // replace empty array with what you see is fit
 }
 
 // `hottestDays` function that:
@@ -32,8 +35,8 @@ function toCelsius(temperatures: number[]): number[] {
 // hottestDays([80, 90, 100, 110], 95); // => [100, 110]
 function hottestDays(temperatures: number[], threshold: number): number[] {
   // write your code here...
-
-  return []; // replace empty array with what you see is fit
+  const hottest: number[] = temperatures.filter((n) => n > threshold);
+  return hottest; // replace empty array with what you see is fit
 }
 
 // `logHottestDays` function that:
@@ -42,6 +45,8 @@ function hottestDays(temperatures: number[], threshold: number): number[] {
 // - Log temperatures that exceed the threshold to the console IN DEGREES CELSIUS  (hint: you can combine all previous functions)
 function logHottestDays(temperatures: number[], threshold: number): void {
   // write your code here...
+  const temp: number[] = toCelsius(temperatures);
+  logger(temp);
 }
 
 export { logger, toCelsius, hottestDays, logHottestDays };

src/filtering.ts

@@ -11,8 +11,9 @@ const numbers = [10, 13, 20, 25, 38, 35, 40];
 // greaterThanTwentyFive(numbers); // => [38, 35, 40]
 function greaterThanTwentyFive(numbers: number[]): number[] {
   // write your code here...
+  const greaterThan: number[] = numbers.filter((number) => number >= 25);
 
-  return []; // replace empty array with what you see is fit
+  return greaterThan; // replace empty array with what you see is fit
 }
 
 // `divisibleByFive` function that:
@@ -22,8 +23,8 @@ function greaterThanTwentyFive(numbers: number[]): number[] {
 // divisibleByFive(numbers); // => [10, 20, 25, 35, 40]
 function divisibleByFive(numbers: number[]): number[] {
   // write your code here...
-
-  return []; // replace empty array with what you see is fit
+  const divisible: number[] = numbers.filter((number) => number % 5 === 0);
+  return divisible; // replace empty array with what you see is fit
 }
 
 export { greaterThanTwentyFive, divisibleByFive };

src/mapping+filtering.ts

@@ -11,8 +11,10 @@ const numbers = [10, 13, 20, 25, 38, 35, 40];
 // filteredAndSquared(numbers); // => [400, 625, 1444, 1225, 1600]
 function filteredAndSquared(numbers: number[]): number[] {
   // write your code here...
-
-  return []; // replace empty array with what you see is fit
+  const filterandsquare: number[] = numbers
+    .filter((n) => n >= 20)
+    .map((n) => n * n);
+  return filterandsquare; // replace empty array with what you see is fit
 }
 
 // `filteredAndTripled` function that:
@@ -22,8 +24,10 @@ function filteredAndSquared(numbers: number[]): number[] {
 // filteredAndTripled(numbers); // => [30, 60, 75, 105, 120]
 function filteredAndTripled(numbers: number[]): number[] {
   // write your code here...
-
-  return []; // replace empty array with what you see is fit
+  const filterandtriple: number[] = numbers
+    .filter((n) => n % 5 === 0)
+    .map((n) => n * 3);
+  return filterandtriple; // replace empty array with what you see is fit
 }
 
 export { filteredAndSquared, filteredAndTripled };

src/mapping.ts

@@ -11,8 +11,8 @@ const numbers = [10, 13, 20, 25, 38, 35, 40];
 // squaredNumbers(numbers); // => [100, 169, 400, 625, 1444, 1225, 1600]
 function squaredNumbers(numbers: number[]): number[] {
   // write your code here...
-
-  return []; // replace empty array with what you see is fit
+  const squared: number[] = numbers.map((number) => number * number);
+  return squared; // replace empty array with what you see is fit
 }
 
 // `doubledNumbers` function that:
@@ -22,8 +22,8 @@ function squaredNumbers(numbers: number[]): number[] {
 // doubledNumbers(numbers); // => [20, 26, 40, 50, 76, 70, 80]
 function doubledNumbers(numbers: number[]): number[] {
   // write your code here...
-
-  return []; // replace empty array with what you see is fit
+  const squared: number[] = numbers.map((number) => number * 2);
+  return squared; // replace empty array with what you see is fit
 }
 
 export { squaredNumbers, doubledNumbers };