History, Features and Syntax

Transcript

1. Overview History, Features, and Syntax Monday, August 31, 2009
2. History Monday, August 31, 2009
3. In the beginning, Netscape created JavaScript Monday, August 31, 2009
4. And Microsoft said it was good Monday, August 31, 2009
5. Red-Headed Step Child Monday, August 31, 2009
6. AJAX Monday, August 31, 2009
7. Asynchronous JavaScript And XML Monday, August 31, 2009
8. Monday, August 31, 2009
9. Frameworks Monday, August 31, 2009
10. The browser and beyond... Monday, August 31, 2009
11. Features Monday, August 31, 2009
12. Dynamic Monday, August 31, 2009
13. Object Oriented and Functional Monday, August 31, 2009
14. Prototype Based Monday, August 31, 2009
15. JSON portability of data to and from any programming language Monday, August 31, 2009
16. Examples Monday, August 31, 2009
17. Monday, August 31, 2009
18. Monday, August 31, 2009
19. Syntax Monday, August 31, 2009
20. case sensitive apple != Apple Monday, August 31, 2009
21. whitespace and semicolons var a = 2; var b = 3; return a + b; return a + b; Monday, August 31, 2009
22. comments // this is a single line comment /* this is a multiline comment */ Monday, August 31, 2009
23. reserved words break else new var case finally return void catch for switch while continue function this with default if throw delete in try do instanceof typeof abstract enum int short boolean export interface static byte extends long super char final native synchronized class float package throws const goto private transient debugger implements protected volatile double import public Monday, August 31, 2009
24. Data Types • numbers: 1 2 3 4 etc. • strings: “some word” ‘also a string’ • booleans: true false • null and undefined • dates: new Date() • functions: function () { ... } • objects: {foo: ‘bar’}; a.foo // ‘bar’ Monday, August 31, 2009
25. Debugging Monday, August 31, 2009
26. Monday, August 31, 2009
27. Firebug (Firefox) http://getfirebug.com/ Monday, August 31, 2009
28. Web Inspector (Safari) Monday, August 31, 2009