pages to improve the design, validate forms, detect browsers, create cookies, and much more. 6.[r]
Trang 11
Trang 22
Trang 3• Why User Interface should look Good?
Design
Guidelines?
3
Trang 4• What are the Elements of Visual Design?
– Font
4
Trang 5• What is JavaScript?
• Embedding JavaScript with HTML
• JavaScript conventions
• Variables in JavaScript
• JavaScript operators
• Input output in JavaScript
• JavaScript functions
• Conditional Statements
• Looping Statements
5
Trang 6• JavaScript is a client-side scripting language
• JavaScript was designed to add
interactivity to HTML pages
• JavaScript is used in millions of Web pages to improve the design, validate forms, detect browsers, create cookies, and much more
6
Trang 7• JavaScript is an interpreted language
(means that scripts execute without preliminary compilation)
• JavaScript is usually embedded
directly into HTML pages
• Everyone can use JavaScript without purchasing a license
7
Trang 8• JavaScript is the programming language of HTML and the Web.
• JavaScript is the most popular
scripting language on the internet, and works in all major browsers, such as Internet Explorer, Mozilla, Firefox, Netscape, Opera
8
Trang 9• JavaScript gives HTML designers a
programming tool
programmers , but JavaScript is a scripting language with a very simple syntax!
code into their HTML pages
• JavaScript can react to events
something happens, like when a page has finished loading or when a user clicks on
an HTML element
• JavaScript can read and write HTML elements
– A JavaScript can read and change the content of an HTML element
9
Trang 10• JavaScript can be used to validate data
data before it is submitted to a server This saves the server from extra processing
• JavaScript can be used to detect the
visitor's browser
• JavaScript can be used to create
cookies