From b18f916ab3a4f433720055c505753de882af04c2 Mon Sep 17 00:00:00 2001
From: Diana Chukhrai <diana.chukhrai31@gmail.com>
Date: Tue, 27 Jan 2026 14:41:25 +0100
Subject: [PATCH] ex1/2/3/4

---
 task-1/book.js       |  8 ++++++-
 task-2/parse-date.js | 38 ++++++++++++++++++++++++++++++-
 task-3/date.js       | 33 +++++++++++++++++++++++++++
 task-4/cleanup.js    | 54 +++++++++++++++++++++++++++++++++++++++++++-
 4 files changed, 130 insertions(+), 3 deletions(-)
 create mode 100644 task-3/date.js

diff --git a/task-1/book.js b/task-1/book.js
index 8b49ecc..6693b81 100644
--- a/task-1/book.js
+++ b/task-1/book.js
@@ -1,3 +1,9 @@
+const bookName = "The fundamentals of JavaScript";
+
 function isBookApplicable(searchString) {
-  // Your code here
+  const cleanSearch = searchString.trim().toLowerCase(); 
+  const cleanBook = bookName.toLowerCase();              
+
+  const containWord = cleanBook.includes(cleanSearch);   
+  return containWord;                                    
 }
diff --git a/task-2/parse-date.js b/task-2/parse-date.js
index 877a3aa..670314c 100644
--- a/task-2/parse-date.js
+++ b/task-2/parse-date.js
@@ -1 +1,37 @@
-// Your code here
+function parseDateString(dateString) {
+  const format = dateString.slice(0, 3);  // "MDY" або "DMY"
+  const datePart = dateString.slice(4);   // "10-21-1983"
+
+  const first = Number(datePart.slice(0, 2));
+  const second = Number(datePart.slice(3, 5));
+  const year = Number(datePart.slice(6, 10));
+
+  let day;
+  let month;
+
+  if (format === "MDY") {
+    month = first;
+    day = second;
+  } else if (format === "DMY") {
+    day = first;
+    month = second;
+  } else {
+    console.log("Wrong format. Use MDY or DMY");
+    return null;
+  }
+
+  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 }
\ No newline at end of file
diff --git a/task-3/date.js b/task-3/date.js
new file mode 100644
index 0000000..8ee552a
--- /dev/null
+++ b/task-3/date.js
@@ -0,0 +1,33 @@
+
+
+//  convertHoursToMinutes, 
+//     convertMinutesToHours, 
+//     convertDaysToHours,
+//     convertHoursToDays,
+//     convertMinutesToSeconds,
+//     convertSecondsToMinutes
+
+
+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;
+}
diff --git a/task-4/cleanup.js b/task-4/cleanup.js
index 207523a..3f44777 100644
--- a/task-4/cleanup.js
+++ b/task-4/cleanup.js
@@ -77,4 +77,56 @@ console.log("Wind chill in " + cityName2 + ": " + windChill2.toFixed(2) + "°C")
 // 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
+console.log("Wind chill in " + cityName3 + ": " + windChill3.toFixed(2) + "°C");
+
+
+
+
+//DRY
+
+function cityName(name) {
+  return `Weather Report for ${name}`;
+}
+
+function getStatusCelsius(celsius) {
+  if (celsius < 0) return "Status: Freezing";
+  if (celsius < 10) return "Status: Cold";
+  if (celsius < 20) return "Status: Mild";
+  if (celsius < 30) return "Status: Warm";
+  return "Status: Hot";
+}
+
+function getStatusFahrenheit(celsius) {
+  return (celsius * 9 / 5) + 32;
+}
+
+function getStatusKelvin(celsius) {
+  return celsius + 273.15;
+}
+
+function calculateWindChill(tempCelsius, windSpeed) {
+  const windSpeedPower = Math.pow(windSpeed, 0.16);
+
+  const windChill =
+    13.12 +
+    0.6215 * tempCelsius -
+    11.37 * windSpeedPower +
+    0.3965 * tempCelsius * windSpeedPower;
+
+  return windChill;
+}
+
+function printWindChill(city, tempCelsius, windSpeed) {
+  const windChill = calculateWindChill(tempCelsius, windSpeed);
+  console.log(`Wind chill in ${city}: ${windChill.toFixed(2)}°C`);
+}
+
+function printWeatherReport(cityNameValue, celsius, windSpeed) {
+  console.log(cityName(cityNameValue));
+  console.log(`Temperature: ${celsius}°C`);
+  console.log(`Temperature: ${getStatusFahrenheit(celsius)}°F`);
+  console.log(`Temperature: ${getStatusKelvin(celsius)}K`);
+  console.log(getStatusCelsius(celsius));
+  printWindChill(cityNameValue, celsius, windSpeed);
+  console.log("---");
+}
\ No newline at end of file