Javascript "What is and Why JavaScript? " 0

What is JavaScript?

• Was designed to add interactivity to HTML pages
• Is a scripting language (a scripting language is a lightweight programming language)
• JavaScript code is usually embedded directly into HTML pages
• JavaScript is an interpreted language (means that scripts execute without preliminary compilation)

What can a JavaScript do?

• JavaScript gives HTML designers a programming tool
• JavaScript can put dynamic text into an HTML page
• JavaScript can react to events
• JavaScript can read and write HTML elements
• JavaScript can be used to validate input data
• JavaScript can be used to detect the visitor's browser
• JavaScript can be used to create cookies