From 9a581e4da6febf7234aa93329672b7646817414c Mon Sep 17 00:00:00 2001
From: Halyna Romanyshyn <30292604+halyna1995@users.noreply.github.com>
Date: Mon, 26 Jan 2026 22:26:50 +0100
Subject: [PATCH 1/2] All tasks are complete

---
 task-1/book.js       |  25 ++++++++-
 task-2/parse-date.js |  29 +++++++++-
 task-3/date.js       |  23 ++++++++
 task-4/cleanup.js    | 126 ++++++++++++++++++-------------------------
 4 files changed, 128 insertions(+), 75 deletions(-)
 create mode 100644 task-3/date.js

diff --git a/task-1/book.js b/task-1/book.js
index 8b49ecc..633f212 100644
--- a/task-1/book.js
+++ b/task-1/book.js
@@ -1,3 +1,26 @@
 function isBookApplicable(searchString) {
-  // Your code here
+  const title = "The fundamentals of JavaScript"; 
+    const inputText = normalizeText(searchString); 
+    if (inputText.length === 0) return false; 
+    const normalizedTitle = normalizeText(title); 
+    return normalizedTitle.includes(inputText);
 }
+
+function normalizeText(s) { 
+    return String(s).trim().toLowerCase().replace(/\s+/g, " "); 
+    }
+
+console.log(isBookApplicable("javascript"));
+// Output: true
+
+console.log(isBookApplicable("javascript "));
+// Output: true
+
+console.log(isBookApplicable("python"));
+// Output: false
+
+console.log(isBookApplicable("JavaScript"));
+// Output: true
+
+console.log(isBookApplicable("JAVASCRIPT"));
+// Output: true
\ No newline at end of file
diff --git a/task-2/parse-date.js b/task-2/parse-date.js
index 877a3aa..a80b924 100644
--- a/task-2/parse-date.js
+++ b/task-2/parse-date.js
@@ -1 +1,28 @@
-// Your code here
+function parseDateString(dateString) {
+    const [format, datePart] = String(dateString).trim().split(/\s+/);
+    const numbers = datePart.split("-").map(Number);
+
+    let day, month, year;
+
+    if (format === "MDY") {
+        [month, day, year] = numbers; // Month-Day-Year
+    } else if (format === "DMY") {
+        [day, month, year] = numbers; // Day-Month-Year
+    } else {
+        throw new Error("Unknown date format. Expected 'MDY' or 'DMY'.");
+    }
+
+    return { day, month, year };
+}
+console.log(parseDateString("MDY 10-21-1983"));
+// Output: { day: 21, month: 10, year: 1983 }
+
+console.log(parseDateString("DMY 21-10-1983"));
+// Output: { day: 21, month: 10, year: 1983 }
+
+console.log(parseDateString("MDY 03-15-2024"));
+// Output: { day: 15, month: 3, year: 2024 }
+
+console.log(parseDateString("DMY 15-03-2024"));
+// Output: { day: 15, month: 3, year: 2024 }
+
diff --git a/task-3/date.js b/task-3/date.js
new file mode 100644
index 0000000..accff57
--- /dev/null
+++ b/task-3/date.js
@@ -0,0 +1,23 @@
+export function convertHoursToMinutes(hours){
+    return hours * 60;
+}
+
+export function convertMinutesToHours(minutes){
+    return minutes / 60;
+}
+
+export function convertDaysToHours(days){
+    return days * 24;
+}
+
+export function convertHoursToDays(hours){
+    return hours / 24;
+}
+
+export function convertMinutesToSeconds(minutes){
+    return minutes * 60;
+}
+
+export function convertSecondsToMinutes(seconds){
+    return seconds / 60;
+}
\ No newline at end of file
diff --git a/task-4/cleanup.js b/task-4/cleanup.js
index 207523a..de7ffde 100644
--- a/task-4/cleanup.js
+++ b/task-4/cleanup.js
@@ -1,80 +1,60 @@
-// Temperature conversion and weather report for City 1
-let cityName1 = "Amsterdam";
-let tempCelsius1 = 22;
-let tempFahrenheit1 = (tempCelsius1 * 9 / 5) + 32;
-let tempKelvin1 = tempCelsius1 + 273.15;
-console.log("Weather Report for " + cityName1);
-console.log("Temperature: " + tempCelsius1 + "°C");
-console.log("Temperature: " + tempFahrenheit1 + "°F");
-console.log("Temperature: " + tempKelvin1 + "K");
-if (tempCelsius1 < 0) {
-  console.log("Status: Freezing");
-} else if (tempCelsius1 >= 0 && tempCelsius1 < 10) {
-  console.log("Status: Cold");
-} else if (tempCelsius1 >= 10 && tempCelsius1 < 20) {
-  console.log("Status: Mild");
-} else if (tempCelsius1 >= 20 && tempCelsius1 < 30) {
-  console.log("Status: Warm");
-} else {
-  console.log("Status: Hot");
+// Converts a temperature from Celsius (°C) to Fahrenheit (°F).
+function celsiusToFahrenheit(c) {
+  return (c * 9) / 5 + 32;
 }
-console.log("---");
-
-// Temperature conversion and weather report for City 2
-let cityName2 = "Berlin";
-let tempCelsius2 = 15;
-let tempFahrenheit2 = (tempCelsius2 * 9 / 5) + 32;
-let tempKelvin2 = tempCelsius2 + 273.15;
-console.log("Weather Report for " + cityName2);
-console.log("Temperature: " + tempCelsius2 + "°C");
-console.log("Temperature: " + tempFahrenheit2 + "°F");
-console.log("Temperature: " + tempKelvin2 + "K");
-if (tempCelsius2 < 0) {
-  console.log("Status: Freezing");
-} else if (tempCelsius2 >= 0 && tempCelsius2 < 10) {
-  console.log("Status: Cold");
-} else if (tempCelsius2 >= 10 && tempCelsius2 < 20) {
-  console.log("Status: Mild");
-} else if (tempCelsius2 >= 20 && tempCelsius2 < 30) {
-  console.log("Status: Warm");
-} else {
-  console.log("Status: Hot");
+// Converts a temperature from Celsius (°C) to Kelvin (K).
+function celsiusToKelvin(c) {
+  return c + 273.15;
+}
+// Returns a human-readable weather status string based on the Celsius temperature.
+function getTemperatureStatus(c) {
+  if (c < 0) return "Freezing";
+  if (c >= 0 && c < 10) return "Cold";
+  if (c >= 10 && c < 20) return "Mild";
+  if (c >= 20 && c < 30) return "Warm";
+  return "Hot";
+}
+// Calculates the wind chill (feels-like temperature) in Celsius using the given air temperature (tempCelsius) and wind speed (windSpeed).
+function calculateWindChill(tempCelsius, windSpeed) {
+  return (
+    13.12 +
+    0.6215 * tempCelsius -
+    11.37 * Math.pow(windSpeed, 0.16) +
+    0.3965 * tempCelsius * Math.pow(windSpeed, 0.16)
+  );
 }
-console.log("---");
+// Prints a weather report for a single city:
+function printWeatherReport(cityName, tempCelsius) {
+  const tempF = celsiusToFahrenheit(tempCelsius);
+  const tempK = celsiusToKelvin(tempCelsius);
 
-// Temperature conversion and weather report for City 3
-let cityName3 = "Copenhagen";
-let tempCelsius3 = -5;
-let tempFahrenheit3 = (tempCelsius3 * 9 / 5) + 32;
-let tempKelvin3 = tempCelsius3 + 273.15;
-console.log("Weather Report for " + cityName3);
-console.log("Temperature: " + tempCelsius3 + "°C");
-console.log("Temperature: " + tempFahrenheit3 + "°F");
-console.log("Temperature: " + tempKelvin3 + "K");
-if (tempCelsius3 < 0) {
-  console.log("Status: Freezing");
-} else if (tempCelsius3 >= 0 && tempCelsius3 < 10) {
-  console.log("Status: Cold");
-} else if (tempCelsius3 >= 10 && tempCelsius3 < 20) {
-  console.log("Status: Mild");
-} else if (tempCelsius3 >= 20 && tempCelsius3 < 30) {
-  console.log("Status: Warm");
-} else {
-  console.log("Status: Hot");
+  console.log("Weather Report for " + cityName);
+  console.log("Temperature: " + tempCelsius + "°C");
+  console.log("Temperature: " + tempF + "°F");
+  console.log("Temperature: " + tempK + "K");
+  console.log("Status: " + getTemperatureStatus(tempCelsius));
+  console.log("---");
+}
+// Prints the wind chill for a single city.
+function printWindChill(cityName, tempCelsius, windSpeed) {
+  const windChill = calculateWindChill(tempCelsius, windSpeed);
+  console.log(
+    "Wind chill in " + cityName + ": " + windChill.toFixed(2) + "°C"
+  );
 }
-console.log("---");
 
-// Wind chill calculation for City 1
-let windSpeed1 = 15;
-let windChill1 = 13.12 + 0.6215 * tempCelsius1 - 11.37 * Math.pow(windSpeed1, 0.16) + 0.3965 * tempCelsius1 * Math.pow(windSpeed1, 0.16);
-console.log("Wind chill in " + cityName1 + ": " + windChill1.toFixed(2) + "°C");
+const cities = [
+  { name: "Amsterdam", tempC: 22, wind: 15 },
+  { name: "Berlin", tempC: 15, wind: 20 },
+  { name: "Copenhagen", tempC: -5, wind: 25 },
+  { name: "Lviv", tempC: 2, wind: 10 },
+  { name: "Strasbourg", tempC: 6, wind: 10 },
+];
 
-// Wind chill calculation for City 2
-let windSpeed2 = 20;
-let windChill2 = 13.12 + 0.6215 * tempCelsius2 - 11.37 * Math.pow(windSpeed2, 0.16) + 0.3965 * tempCelsius2 * Math.pow(windSpeed2, 0.16);
-console.log("Wind chill in " + cityName2 + ": " + windChill2.toFixed(2) + "°C");
+for (const c of cities) {
+  printWeatherReport(c.name, c.tempC);
+}
 
-// Wind chill calculation for City 3
-let windSpeed3 = 25;
-let windChill3 = 13.12 + 0.6215 * tempCelsius3 - 11.37 * Math.pow(windSpeed3, 0.16) + 0.3965 * tempCelsius3 * Math.pow(windSpeed3, 0.16);
-console.log("Wind chill in " + cityName3 + ": " + windChill3.toFixed(2) + "°C");
\ No newline at end of file
+for (const c of cities) {
+  printWindChill(c.name, c.tempC, c.wind);
+}

From 35ef3d40cbf13092a8ff0512b251160f6391a759 Mon Sep 17 00:00:00 2001
From: Halyna Romanyshyn <30292604+halyna1995@users.noreply.github.com>
Date: Sun, 1 Feb 2026 11:17:55 +0100
Subject: [PATCH 2/2] Make code nice to read

---
 task-1/book.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/task-1/book.js b/task-1/book.js
index 633f212..cbd3146 100644
--- a/task-1/book.js
+++ b/task-1/book.js
@@ -8,7 +8,7 @@ function isBookApplicable(searchString) {
 
 function normalizeText(s) { 
     return String(s).trim().toLowerCase().replace(/\s+/g, " "); 
-    }
+}
 
 console.log(isBookApplicable("javascript"));
 // Output: true
@@ -23,4 +23,4 @@ console.log(isBookApplicable("JavaScript"));
 // Output: true
 
 console.log(isBookApplicable("JAVASCRIPT"));
-// Output: true
\ No newline at end of file
+// Output: true