JavaScript

JavaScript is a programming language commonly used to make web pages respond to actions and update information without requiring a completely new page load. It can power a collapsible navigation menu, validate a quote form, display an availability calendar, or communicate with another service. HTML provides the document structure, while CSS generally controls its appearance. A lawn care site might use JavaScript to reveal different form fields based on the requested service. Interactive code should be tested for keyboard access, errors, and slower connections. A website does not need complicated JavaScript to look professional, and unnecessary scripts can introduce maintenance or performance problems.