JavaScript

Exercises Set 9

const weatherDatabase = [
  { city: "Kochi", weather: "28°C, Humid" },
  { city: "Mumbai", weather: "30°C, Sunny" },
  { city: "Delhi", weather: "35°C, Dry Heat" },
  { city: "Bangalore", weather: "24°C, Pleasant" },
  { city: "Chennai", weather: "32°C, Hot and Humid" },
  { city: "Pune", weather: "22°C, Cool and Breezy" }
];

const fetchWeatherForCities = (cities, callback) => {
  // Write your code below this

  // Write your code above this
};

// Do not delete the below code
const citySet = {
  citySet1: ["Kochi", "bangalore", "Chennai"],
  citySet2: ["Kolkata", "PUNE"],
  citySet3: ["Bangalore", "Hyderabad"]
};

Object.values(citySet).forEach(cities => {
  fetchWeatherForCities(cities, (weatherData) => {
    console.log("Fetched weather data:", weatherData);
  });
});

const weatherDatabase = [
  { city: "Kochi", weather: "28°C, Humid" },
  { city: "Mumbai", weather: "30°C, Sunny" },
  { city: "Delhi", weather: "35°C, Dry Heat" },
  { city: "Bangalore", weather: "24°C, Pleasant" },
  { city: "Chennai", weather: "32°C, Hot and Humid" },
  { city: "Pune", weather: "22°C, Cool and Breezy" }
];

const fetchWeatherForCities = (cities, callback) => {
  // Write your code below this
  const weatherData = {};
  let completedRequests = 0;

  cities.forEach((city) => {
    console.log(`Fetching data for ${city}.`);
    setTimeout(() => {
      const cityWeather = weatherDatabase.find(
        (entry) => entry.city.toLowerCase() === city.toLowerCase()
      );
      if (cityWeather) {
        weatherData[city] = cityWeather.weather;
      } else {
        weatherData[city] = "Weather data not available";
      }

      completedRequests++;
      if (completedRequests === cities.length) {
        callback(weatherData);
      }
    }, 2000);
  });
  // Write your code above this
};

// Do not delete the below code
const citySet = {
  citySet1: ["Kochi", "bangalore", "Chennai"],
  citySet2: ["Kolkata", "PUNE"],
  citySet3: ["Bangalore", "Hyderabad"]
};

Object.values(citySet).forEach(cities => {
  fetchWeatherForCities(cities, (weatherData) => {
    console.log("Fetched weather data:", weatherData);
  });
});