JavaScript Basics & HTML DOM / PDF

JavaScript Basics & HTML DOM / PDF

Table of Contents

• What is and Why JavaScript?

• How and Where do you place JavaScript code?

• JavaScript language

• JavaScript functions

• JavaScript events

• JavaScript objects

• JavaScript HTML DOM objects

• Closure (need to be added)

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Sample of the PDF document 

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


How to put a JavaScript code into an HTML page?

• Use the

Where Do You Place Scripts?

• Scripts can be in the either section or section
• Convention is to place it in the section




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JavaScript Basics & HTML DOM / PDF