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Understanding JavaScript programming
Descriptions
Who is this course for
The content is aimed at anyone who has to maintain or modify a web site. Whatever technology you use at your workplace, JavaScript, jQuery, AJAX and JSON will almost certainly play a large part in your company web site. Having staff members trained in these technologies means you can quickly and easily make adjustments that would otherwise have to be done by expensive contractors.
Purpose of the course
The course is intended to continue where our HTML/CSS course left off, looking to enhance static webpages with JavaScript to shape and modify content on-the-fly. Emphasis is placed upon code maintainability and testing/debugging. This content also serves as a good grounding for techniques visited on our .NET courses.
You will learn how to
Produce more dynamic web pages that react to user actionsManipulate web content interactively
Write browser-based applications for cross-platform web delivery
Benefits for you as an individual
As a developer these days, it's a pre-requisite that you know these core technologies of JavaScript, jQuery, AJAX and JSON. Once these are mastered, you will better be able to troubleshoot and debug existing site functionality. Plus, the added bonus of being able to jazz up any websites, whether corporate .NET pages or a personal website - JavaScript/jQuery/AJAX can do so much.
Benefits for your organisation
Many web pages written to older standards will show signs of failing in newer browsers. It is important that modern websites are written to correct standards not just for compliance and maintainability reasons, but to prevent loss of credibility and/or lost sales. Imagine where ebay, amazon, google or facebook would be if they failed to keep up with web standards - how would loss of functionality impact your business?
Prerequisites
A basic knowledge of HTML and CSS is required to gain the most from this course, and some prior experience of programming can be an advantage but is not considered essential.Introduction to JavaScript
- What is JavaScript?
- How Does JavaScript Work?
- JavaScript Variants.
Basic Programming Constructs
- JavaScript Syntax.
- Declaring Scripts.
- Outputting Text.
Variables and Data Types
- Variables.
- Data Types.
- Operators.
- User-Input.
Controlling Program Flow
- JavaScript Conditions.
- Using Loops.
- Procedures and Functions.
Objects, Properties and Methods
- What are Objects?
- JavaScript Built-In Objects.
- Using Objects.
- Custom Objects.
Working with Browsers
- Working with HTML.
- Error Handling.
- Debugging Tools.
- Timers and Timeouts.
- Popup Windows.
- Browser Detection.
- Accessibility Issues.
Events and Errors
- What Is An Event?
- Reacting To Events.
- Common Event Usage.
- Handling Exceptions.
The Document Object Model
- Extending HTML.
- DHTML - Dynamic HTML.
- DOM - The Document Object Model.
Form Processing
- Form Controls.
- Form Events, Properties and Methods.
- Form Validation.
- Effective Form Validation.
- Sending Form Data.
Cookies and Security
- What is a Cookie?
- Creating a Cookie.
- Retrieving a Cookie.
- Security and Privacy.
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