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16 changes: 15 additions & 1 deletion task-1/book.js
Original file line number Diff line number Diff line change
@@ -1,3 +1,17 @@
function isBookApplicable(searchString) {
// Your code here
const BookTitles = "The fundamentals of JavaScript";
const normalizedBookTitles = BookTitles.toLowerCase();
const normalizedSearchString = searchString.trim().toLowerCase();
return normalizedBookTitles.includes(normalizedSearchString);
}
// Sample tests
console.log(isBookApplicable("javascript"));
console.log(isBookApplicable("javascript "));
console.log(isBookApplicable("python"));
console.log(isBookApplicable("JavaScript"));
console.log(isBookApplicable("JAVASCRIPT"));
console.log(isBookApplicable(" JavaScript "));
console.log(isBookApplicable("fundamentals"));
console.log(isBookApplicable("Fundamentals of JavaScript"));
console.log(isBookApplicable("The fundamentals of JavaScript"));
console.log(isBookApplicable("The fundamentals of JavaScript!"));
28 changes: 27 additions & 1 deletion task-2/parse-date.js
Original file line number Diff line number Diff line change
@@ -1 +1,27 @@
// Your code here
function parseDateString(dateString) {
const [format, datePart] = dateString.trim().split(" ");
const [first, second, year] = datePart.split("-").map(Number);

if (format === "MDY") {
return {
day: second,
month: first,
year: year,
};
}

if (format === "DMY") {
return {
day: first,
month: second,
year: year,
};
}
}

// Sample tests
console.log(parseDateString("MDY 10-21-2026"));
console.log(parseDateString("DMY 21-10-2026"));
console.log(parseDateString("MDY 03-15-1897"));
console.log(parseDateString("DMY 15-03-1897"));

19 changes: 19 additions & 0 deletions task-3/date.js
Original file line number Diff line number Diff line change
@@ -0,0 +1,19 @@
const convertor = {

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This code is good, and it is doing what is being asked. But it is not exported properly, and this is a library.

If you try to run the example, it fails (SyntaxError: Named export 'convertDaysToHours' not found.)

Try to fix it to make this a library.

HoursToMinutes: (hours) => (hours * 60),
MinutesToHours: (minutes) => (minutes / 60),
DaysToHours: (days) => (days * 24),
HoursToDays: (hours) => (hours / 24),
MinutesToSeconds: (minutes) => (minutes * 60),
SecondsToMinutes: (seconds) => (seconds / 60),
}

// sample tests

console.log(convertor.HoursToMinutes(72));
console.log(convertor.MinutesToHours(480));
console.log(convertor.DaysToHours(92));
console.log(convertor.HoursToDays(180));
console.log(convertor.MinutesToSeconds(5));
console.log(convertor.SecondsToMinutes(360));


121 changes: 41 additions & 80 deletions task-4/cleanup.js
Original file line number Diff line number Diff line change
@@ -1,80 +1,41 @@
// 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");
}
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");
}
console.log("---");

// 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("---");

// 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");

// 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");

// 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");
const celsiusToFahrenheit = (celsius) => (celsius * 9) / 5 + 32;
const celsiusToKelvin = (celsius) => celsius + 273.15;
const getTemperatureStatus = (celsius) =>

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This is a trap. Having so many ternaries chaining each other is really hard to read/maintain.

Ternary is really nice if you are doing just a single check (const a = b ? c : d). But if you have so many, try to use if else.

celsius < 0
? "Freezing"
: celsius < 10
? "Cold"
: celsius < 20
? "Mild"
: celsius < 30
? "Warm"
: "Hot";
const calculateWindChill = (celsius, windSpeed) =>
13.12 +
0.6215 * celsius -
11.37 * Math.pow(windSpeed, 0.16) +
0.3965 * celsius * Math.pow(windSpeed, 0.16);
const printWeatherReport = ({ cityName, tempCelsius, windSpeed }) => {
console.log(`Weather Report for ${cityName}`);
console.log(`Temperature: ${tempCelsius}°C`);
console.log(`Temperature: ${celsiusToFahrenheit(tempCelsius).toFixed(2)}°F`);
console.log(`Temperature: ${celsiusToKelvin(tempCelsius).toFixed(2)}K`);
console.log(`Status: ${getTemperatureStatus(tempCelsius)}`);
console.log("---");

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This --- is too early. It ends separating wrong. Check this output

Weather Report for Amsterdam
Temperature: 22°C
Temperature: 71.60°F
Temperature: 295.15K
Status: Warm
---
Wind chill in Amsterdam: 22.71°C

console.log(
`Wind chill in ${cityName}: ${calculateWindChill(tempCelsius, windSpeed).toFixed(2)}°C\n`,
);
};
const printallWeatherReports = ({ cityName, tempCelsius, windSpeed }) => {
for (const city of cities) {
printWeatherReport(city);
}
};
const cities = [
{ cityName: "Amsterdam", tempCelsius: 22, windSpeed: 15 },
{ cityName: "Berlin", tempCelsius: 15, windSpeed: 20 },
{ cityName: "Copenhagen", tempCelsius: -5, windSpeed: 25 },
{ cityName: "Utrecht", tempCelsius: 28, windSpeed: 10 },
{ cityName: "Tehran", tempCelsius: 5, windSpeed: 8 },
];
printallWeatherReports(cities);