Used in Tsukuba.pm#2 (2012/7/7)

1. JSX language notes
gfx <gfuji@cpan.org>
Tsukuba.pm #2 Tanabata Hacks
2012/7/7 #tsukubapm

2. Myself
Name: Fuji Goro (gfx)
Working at: DeNA, Co., Ltd.
Job: software engineer
Interested in: software development

3. What
JSX is a faster, safer, easier alternative
to JavaScript

4. Why
T be used in middle- to large-scaled
o
software development

5. How
Based on ECMA-262 Standard
Static types
Class model

6. Status (2012/7/7)
Basic syntax are fixed
Advanced feature like templates are not
Supported in jsdo.it
TODO: jsxdoc, more code completion,
template functions, loading JS modules

7. Demo
Example
Profiler
Debugger
Completion

8. Nullability
Primitive types are NOT nullable
Object types are nullable
Nullable.<PrimitiveType> are nullable

9. Variant Type
Directly mapped to JavaScript value
Have to cast it to another type to use

10. Parameterized Types
a.k.a templates
For generic programming

11. Lambda
function (a : int) : int { return a + 1; }
(a : int) -> int { return a + 1; }
(a) -> a + 1

12. Development Tools
nodejs for compilers
prove(1) for testing
idl2jsx.pl to convert WebIDL to JSX