To ensure cross-browser compatibility, developers should use feature detection techniques to detect the features available in the browser and adjust the code accordingly. This will help to ensure that the code works correctly in all browsers, regardless of the features available. Additionally, developers should use libraries and frameworks such as jQuery to help reduce the amount of code that needs to be written and tested.
Alternative programming languages to consider
PHP is a great choice for web development, as it is easy to learn and has a wide range of features. Python is also a popular choice, as it is a powerful language that is easy to use. Ruby is a great choice for those who want to create dynamic websites, as it is a powerful language that is easy to learn. All of these languages offer great flexibility and scalability, making them ideal for web development.