From 7d3faded0a2adc1db286789530669b8b9584bf41 Mon Sep 17 00:00:00 2001
From: AK-macbook <aalkhareji27@gmail.com>
Date: Mon, 10 Mar 2025 13:13:37 +0300
Subject: [PATCH] Implement iteration methods using map and filter

---
 src/challenge.ts         | 12 ++++++++----
 src/filtering.ts         |  5 ++---
 src/mapping+filtering.ts |  4 ++--
 src/mapping.ts           |  4 ++--
 4 files changed, 14 insertions(+), 11 deletions(-)

diff --git a/src/challenge.ts b/src/challenge.ts
index 63a7766..f76d335 100644
--- a/src/challenge.ts
+++ b/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.map((element) => {
+    console.log(element);
+  });
 }
 
 // `toCelsius` function that:
@@ -20,7 +23,7 @@ function logger<T>(array: T[]): void {
 function toCelsius(temperatures: number[]): number[] {
   // write your code here...
 
-  return []; // replace empty array with what you see is fit
+  return temperatures.map((temp) => (temp - 32) * (5 / 9)); // replace empty array with what you see is fit
 }
 
 // `hottestDays` function that:
@@ -33,15 +36,16 @@ function toCelsius(temperatures: number[]): number[] {
 function hottestDays(temperatures: number[], threshold: number): number[] {
   // write your code here...
 
-  return []; // replace empty array with what you see is fit
+  return temperatures.filter((temp) => temp > threshold); // replace empty array with what you see is fit
 }
 
 // `logHottestDays` function that:
 // - Accepts "temperatures" parameter of type "number[]", representing temperature values in Fahrenheit.
 // - Accepts "threshold" parameter of type "number"
-// - Log temperatures that exceed the threshold to the console IN DEGREES CELSIUS  (hint: you can combine all previous functions)
+// - 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...
+  logger(toCelsius(hottestDays(temperatures, threshold)));
 }
 
 export { logger, toCelsius, hottestDays, logHottestDays };
diff --git a/src/filtering.ts b/src/filtering.ts
index 49411d8..66f6bb8 100644
--- a/src/filtering.ts
+++ b/src/filtering.ts
@@ -12,7 +12,7 @@ const numbers = [10, 13, 20, 25, 38, 35, 40];
 function greaterThanTwentyFive(numbers: number[]): number[] {
   // write your code here...
 
-  return []; // replace empty array with what you see is fit
+  return numbers.filter((number) => number >= 25); // replace empty array with what you see is fit
 }
 
 // `divisibleByFive` function that:
@@ -22,8 +22,7 @@ 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
+  return numbers.filter((number) => number % 5 == 0); // replace empty array with what you see is fit
 }
 
 export { greaterThanTwentyFive, divisibleByFive };
diff --git a/src/mapping+filtering.ts b/src/mapping+filtering.ts
index 269ad83..6c66176 100644
--- a/src/mapping+filtering.ts
+++ b/src/mapping+filtering.ts
@@ -12,7 +12,7 @@ const numbers = [10, 13, 20, 25, 38, 35, 40];
 function filteredAndSquared(numbers: number[]): number[] {
   // write your code here...
 
-  return []; // replace empty array with what you see is fit
+  return numbers.filter((n) => n >= 20).map((n) => n * n); // replace empty array with what you see is fit
 }
 
 // `filteredAndTripled` function that:
@@ -23,7 +23,7 @@ function filteredAndSquared(numbers: number[]): number[] {
 function filteredAndTripled(numbers: number[]): number[] {
   // write your code here...
 
-  return []; // replace empty array with what you see is fit
+  return numbers.filter((n) => n % 5 === 0).map((n) => n * 3); // replace empty array with what you see is fit
 }
 
 export { filteredAndSquared, filteredAndTripled };
diff --git a/src/mapping.ts b/src/mapping.ts
index 6f18eef..76b0b94 100644
--- a/src/mapping.ts
+++ b/src/mapping.ts
@@ -12,7 +12,7 @@ const numbers = [10, 13, 20, 25, 38, 35, 40];
 function squaredNumbers(numbers: number[]): number[] {
   // write your code here...
 
-  return []; // replace empty array with what you see is fit
+  return numbers.map((n) => n * n); // replace empty array with what you see is fit
 }
 
 // `doubledNumbers` function that:
@@ -23,7 +23,7 @@ function squaredNumbers(numbers: number[]): number[] {
 function doubledNumbers(numbers: number[]): number[] {
   // write your code here...
 
-  return []; // replace empty array with what you see is fit
+  return numbers.map((n) => n * 2); // replace empty array with what you see is fit
 }
 
 export { squaredNumbers, doubledNumbers };