JavaScript Notes
JavaScript Origins JavaScript was released by Netscape and Sun Microsystems in 1995. However, JavaScript is not the same thing as Java . What is JavaScript • It is a programming language. • It is an interpreted language. • It is object-based programming. • It is widely used and supported • It is accessible to the beginner . Uses of JavaScript • Use it to add multimedia elements With JavaScript you can show, hide, change, resize images, and create image rollovers. You can create scrolling text across the status bar. • Create pages dynamically Based on the user's choices, the date, or other external data, JavaScript can produce pages that are customized to the user. • Interact with the user It can do some processing of forms and can validate user input when the user submits the form. Writing JavaScript JavaScript code is typically embedded in the HTML, to be interpreted and run by the client's browser. Here ar