2. What is JavaScript? Powerful scripting language that your web browser executes. Built into every major web browser. Standardized (for the most part) for all web browsers.<script>alert(“hello world!”);</script>
6. What’s so bad about that? Web pages are easier to update when functionality and layout are uncoupled. JavaScript must be part of the document body instead of in a cacheable external file. href=“#” example when JavaScript disabled. Everybody code like it’s 1999!
9. Reusable and globally accessible. Easier to change one function then all your markup!
10.
11. Guidelines for accessibility Build a website without any JavaScript. Once the website functions without JavaScript, use JavaScript to enhance the user experience. Easier interaction Performance Fun These guidelines only make sense when using unobtrusive JavaScript!