Download as PDF, PPTX
![Data Types
•
Primary
!
•
•
“Hello” - “” - “1984” - “TRUE”
•
Number
•
19 - 19.333
•
•
String
Boolean
•
true - false
•
var car = { myCar: “Saturn", getCar:
CarTypes("Honda"), special: Sales };
•
var coffees = ["French Roast", "Colombian", "Kona"];
•
Object
•
•
!
Composite
Array
Special
•
Special
•
Null
•
null, 0, false.
•
Undefined
•
undefined value.
WOODIWISS.ME](https://image.slidesharecdn.com/technology-3-javascript-basics-131102055030-phpapp01/85/technology3-javascript-basics-19-320.jpg)
Uploaded byDarren Woodiwiss
technology3-javascript-basics
This document provides an introduction to JavaScript basics, covering what JavaScript is, how it is used in browsers and other environments, its data types, variables, functions, and scope. It discusses JavaScript's standardization by ECMA and how JavaScript can be used for client-side scripting, server-side applications with Node.js, and programming hardware with Arduino. The document also provides an overview of JavaScript syntax and keywords like comments, statements, and functions.
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- 1. Javascript The Basics WOODIWISS.ME Freelance WebDeveloper & Lecturer in the Winchester, Hampshire area.
- 2. What’s covered • What isJavaScript • Comments • JavaScript in a Browser • Data Types • Variables • Functions • Statements • Scope WOODIWISS.ME
- 3. What is JavaScript • LightweightScripting Language. • Interpreted. • Object Orientated. • Prototype-based. WOODIWISS.ME
- 4. Easy to pickup. difficult to master. WOODIWISS.ME Freelance Web Developer & Lecturer in the Winchester, Hampshire area.
- 5.
- 6. ECMA What/Who is ECMA? • EuropeanComputer Manufacturers Association. WOODIWISS.ME
- 7. ECMA What/Who is ECMA? • EuropeanComputer Manufacturers Association. • Non-profit Standards Organisation. WOODIWISS.ME
- 8. ECMA What/Who is ECMA? • EuropeanComputer Manufacturers Association. • Non-profit Standards Organisation. • Introducing ECMAScript! WOODIWISS.ME
- 9.
- 10. So what can javascriptdo? WOODIWISS.ME Freelance Web Developer & Lecturer in the Winchester, Hampshire area.
- 11. Hardware Programming • Arduino viaNodeJS framework. • Tessel - micro-controller that runs JavaScript. • Uniduino - gives you the power to connect the Unity game engine to Arduino. • Control peripherals e.g. GamePads. WOODIWISS.ME
- 12. Create Hybrid Apps • PhoneGap- iOS, Android, Blackberry, Windows Phone & more. • TideSDK - Windows, OSX, Linux. • Icenieum - Windows, Web, iOS. • Chrome Apps. WOODIWISS.ME
- 13.
- 14. Client Side • Vanilla JavaScriptin a browser. • jQuery - simplify client side scripting. • Zepto - Lightweight jQuery alternative. • Three.js - 3D graphics on the web. • AngularJS - SPA framework. • jQuery Mobile - Touch optimised. WOODIWISS.ME
- 15. In the Browser • Letslook at some Developer tools. • Firefox - Firebug. • Chrome - Web Developer Tools. • Internet Explorer - Developer ToolBar. • Opera - Dragonfly. WOODIWISS.ME
- 16. Variables • Used to storedata. • Single line style. • Multiline. • Typically must begin with a letter ( $ and _ are valid ) • Case sensitive. • Over-writable - dynamic. WOODIWISS.ME
- 17. Statements • The end ofa command. • Tells the interpreter (browser) that your intention is finished. WOODIWISS.ME
- 18. Comments • Helpful notes. • Good fordebugging. • Working with others. • Don’t overuse. WOODIWISS.ME
- 19. Data Types • Primary ! • • “Hello” -“” - “1984” - “TRUE” • Number • 19 - 19.333 • • String Boolean • true - false • var car = { myCar: “Saturn", getCar: CarTypes("Honda"), special: Sales }; • var coffees = ["French Roast", "Colombian", "Kona"]; • Object • • ! Composite Array Special • Special • Null • null, 0, false. • Undefined • undefined value. WOODIWISS.ME
- 20.
- 21. Calling / Invoking Line12 WOODIWISS.ME
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- 26. Define with arguments. Callwith arguments. WOODIWISS.ME
- 27. Define with arguments. Callwith arguments. WOODIWISS.ME
- 28. Define with arguments. 1 Callwith arguments. WOODIWISS.ME
- 29. Define with arguments. 1 Callwith arguments. WOODIWISS.ME
- 30. Define with arguments. 1 Callwith arguments. WOODIWISS.ME
- 31. Define with arguments. 1 1 Callwith arguments. WOODIWISS.ME
- 32. Define with arguments. 1 1 Callwith arguments. WOODIWISS.ME 1
- 33. Define with arguments. 1 1 Callwith arguments. WOODIWISS.ME 1
- 34. Define with arguments. 1 10 1 Callwith arguments. WOODIWISS.ME 1
- 35. Define with arguments. 1 10 1 Callwith arguments. WOODIWISS.ME 1
- 36. Define with arguments. 1 10 10 1 Callwith arguments. WOODIWISS.ME 1
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- 43. Questions? WOODIWISS.ME Freelance Web Developer& Lecturer in the Winchester, Hampshire area.