How can you ensure cross-browser compatibility when developing JavaScript applications?

Ensuring cross-browser compatibility is a crucial aspect of JavaScript development because different web browsers may have variations in their rendering engines, JavaScript implementations, and supported features. To ensure that your JavaScript applications work seamlessly across different browsers, consider the following best practices: 1. Test on Multiple Browsers: Test your application on a variety of browsers, including popular options such as Google Chrome, Mozilla Firefox, Safari, and Microsoft Edge. This will help you identify any browser-specific issues and ensure that your application functions correctly across different platforms. 2. Use Feature Detection: Rather than relying on browser detection, it's recommended to use feature detection techniques to check for the availability of specific JavaScript features or APIs. This allows you to provide alternative code paths or fallbacks for browsers that don't support certain features. 3. Follow Web Standards: Adhere to web standards and use valid HTML, CSS, and JavaScript code. Stick ....