Interactive JavaScript Weather App for Accurate Forecasts | electro4u
Weather App in JavaScript
Overview
This tutorial will show you how to build a weather app in JavaScript using the OpenWeatherMap API. This API allows you to get real-time weather data for any location in the world.
Prerequisites
- Basic knowledge of HTML and CSS
- Basic knowledge of JavaScript
Steps 01: Create a new HTML file and add the following code:
<!DOCTYPE html>
<html>
<head>
<title>Weather App</title>
<link rel="stylesheet" href="style.css">
</head>
<body>
<h1>Weather App</h1>
<input type="text" id="city-input" placeholder="Enter a city name">
<button type="button" id="search-button">Search</button>
<div id="weather-info"></div>
<script src="script.js"></script>
</body>
</html>Syteps 02: Create a new CSS file and add the following code:
body {
font-family: sans-serif;
}
h1 {
text-align: center;
}
input {
width: 200px;
margin: 0 10px;
}
button {
margin: 0 10px;
}
#weather-info {
margin-top: 20px;
}Steps 03: Create a new JavaScript file and add the following code:
const apiKey = "YOUR_API_KEY";
const cityInput = document.querySelector("#city-input");
const searchButton = document.querySelector("#search-button");
const weatherInfo = document.querySelector("#weather-info");
searchButton.addEventListener("click", async () => {
const city = cityInput.value;
const response = await fetch(`https://api.openweathermap.org/data/2.5/weather?q=${city}&units=metric&appid=${apiKey}`);
const data = await response.json();
const temperature = data.main.temp;
const condition = data.weather[0].main;
weatherInfo.innerHTML = `
<h3>${city}</h3>
<p>Temperature: ${temperature}°C</p>
<p>Condition: ${condition}</p>
`;
});Steps 04: Replace YOUR_API_KEY with your own OpenWeatherMap API key.
Steps 05: Save all of your files and open the HTML file in a web browser.
Steps 06: Enter a city name in the input field and click the "Search" button.
The weather information for the city will be displayed in the "Weather Info" section below the search bar.
Conclusion
This is a basic example of a weather app in JavaScript. You can extend this app to add more features, such as a forecast, a search history, and support for different units of measurement.
Top Resources Now:
- Mozilla Developer Network
- JavaScript.info
- freeCodeCamp
- W3Schools JavaScript
- Eloquent JavaScript
- JavaScript MDN Web Docs
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Note: If you encounter any issues or specific errors when running this program, please let me know and I'll be happy to help debug them!