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Just Jolly Functions

Functions: Adding a Weather Widget with HTML, CSS, and JavaScript

A simple Weather Widget using HTML, CSS, and JavaScript. This widget fetches the weather data from the OpenWeatherMap API and displays the current weather in a city. You can replace "YOUR_API_KEY" with your actual API key from OpenWeatherMap.



Full Code:

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Weather Widget</title>
  <style>
    /* Basic styling */
    body {
      font-family: Arial, sans-serif;
      display: flex;
      justify-content: center;
      align-items: center;
      height: 100vh;
      background-color: #f4f4f9;
      margin: 0;
    }

    .weather-widget {
      background-color: #fff;
      border-radius: 10px;
      padding: 20px;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
      width: 300px;
      text-align: center;
    }

    .weather-widget h2 {
      margin: 0;
      font-size: 2rem;
      color: #333;
    }

    .weather-widget p {
      margin: 10px 0;
      font-size: 1.1rem;
      color: #555;
    }

    .weather-widget .temp {
      font-size: 3rem;
      color: #f39c12;
    }

    .weather-widget .description {
      font-size: 1.2rem;
      text-transform: capitalize;
    }

    .weather-widget .error {
      color: red;
      font-size: 1.2rem;
    }

    .weather-widget input {
      padding: 10px;
      margin-top: 15px;
      width: 80%;
      border: 1px solid #ccc;
      border-radius: 5px;
      font-size: 1rem;
    }

    .weather-widget button {
      padding: 10px;
      background-color: #3498db;
      color: white;
      border: none;
      border-radius: 5px;
      cursor: pointer;
      margin-top: 10px;
    }

    .weather-widget button:hover {
      background-color: #2980b9;
    }
  </style>
</head>
<body>

  <div class="weather-widget">
    <h2>Weather</h2>
    <p>Enter city to get the weather</p>
    <input type="text" id="city-input" placeholder="Enter city name">
    <button id="get-weather">Get Weather</button>

    <div id="weather-info">
      <p class="temp"></p>
      <p class="description"></p>
      <p class="error"></p>
    </div>
  </div>

  <script>
    // Get DOM elements
    const cityInput = document.getElementById("city-input");
    const getWeatherButton = document.getElementById("get-weather");
    const weatherInfo = document.getElementById("weather-info");
    const tempElement = weatherInfo.querySelector(".temp");
    const descriptionElement = weatherInfo.querySelector(".description");
    const errorElement = weatherInfo.querySelector(".error");

    // Function to fetch weather
    async function fetchWeather(city) {
      const apiKey = "YOUR_API_KEY"; // Replace with your actual API key
      const url = `https://api.openweathermap.org/data/2.5/weather?q=${city}&appid=${apiKey}&units=metric`;

      try {
        const response = await fetch(url);
        const data = await response.json();

        if (data.cod === "404") {
          throw new Error("City not found");
        }

        const temp = data.main.temp;
        const description = data.weather[0].description;

        // Display weather info
        tempElement.textContent = `${temp}°C`;
        descriptionElement.textContent = description;
        errorElement.textContent = ""; // Clear any error message
      } catch (error) {
        tempElement.textContent = "";
        descriptionElement.textContent = "";
        errorElement.textContent = "Error: " + error.message;
      }
    }

    // Event listener for button click
    getWeatherButton.addEventListener("click", () => {
      const city = cityInput.value.trim();
      if (city) {
        fetchWeather(city);
      } else {
        errorElement.textContent = "Please enter a city name.";
      }
    });
  </script>

</body>
</html>

Explanation:

  1. HTML Structure:

    • The Weather Widget contains an input field where the user can type a city name.

    • A button is provided to trigger the weather search.

    • The weather information (temperature, description) or an error message is displayed below.

  2. CSS Styling:

    • The widget is styled with a clean design and centered on the page.

    • The temperature (.temp) is styled in a large font with a warm color (#f39c12).

    • The widget background is white with rounded corners and a subtle shadow for a modern look.

    • There are hover effects on the button to provide interactive feedback to users.

  3. JavaScript:

    • The script fetches weather data from the OpenWeatherMap API using the fetch API.

    • It dynamically updates the widget with the temperature and description of the weather when the button is clicked.

    • Error handling is implemented to display an error message if the city is not found or if there is an issue with the API request.


How to Use:

  1. Get an API Key:

    • Go to OpenWeatherMap and sign up for a free account.

    • After registering, you will get an API key. Replace "YOUR_API_KEY" in the code with your actual API key.

  2. Customization:

    • You can modify the appearance (e.g., colors, fonts, etc.) by updating the CSS.

    • You can also add more weather data, like humidity or wind speed, by extracting additional information from the API response.


Features:

  • Responsive: The widget is simple and can adjust to various screen sizes.

  • Error Handling: It handles errors such as incorrect city names and missing input.

  • Simple and Interactive: A clean UI with clear user interaction, making it easy to use.


This is a simple and effective way to display weather information dynamically on your post.

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