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Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
Happy Programming with CoffeeScript
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Happy Programming with CoffeeScript

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  • 1. Happy Programming with CoffeeScript 高見見龍龍photo by yukop
  • 2. 高見見龍龍a.k.a Eddie or Aquarianboy Live and work in Taipei, Taiwan. Serving in my own little tiny company. Flash / AS3 / Ruby / Rails / Python programming for living. Mac OS user, Objective-C for personal inerests. Technical Education and Consulant. PTT Flash BM (since 2007/4). Ruby Certified Programmer (Since 2012/1). Adobe Certified Flash Developer (Since 2006/7). Linux Professional Institue Certification (Since 2005/3). photo by Eddie
  • 3. Intro 簡介
  • 4. Popular
  • 5. PopularPowerful
  • 6. Popular PowerfulComplicaed
  • 7. Before photo by Razlan
  • 8. photo by Razlan Now
  • 9. seems easyphoto by apple apple
  • 10. photo by Marcus Q
  • 11. Today, I am going o ell you..
  • 12. Happy 快樂
  • 13. We’re not alking about this kind of coffee.photo by Nick Humphries
  • 14. Not this either.photo by naotoj
  • 15. I have no idea why engineers likeusing food as their project name.
  • 16. JeremyAshkenas photo by jsconf
  • 17. 2009/12
  • 18. and I sared o useCoffeeScript since 2011/5
  • 19. and I sared o useCoffeeScript since 2011/5 because of Rails
  • 20. yet another new language !?
  • 21. "Its just JavaScript"
  • 22. just writen in different synax
  • 23. borrowed fromPython, Ruby and Haskell.
  • 24. and would be compiled ino JavaScript code
  • 25. JSLint Compatible
  • 26. So, its still Javascript
  • 27. "hmm.."
  • 28. "Its just JavaScript"
  • 29. "Its just JavaScript"
  • 30. "I think its just CoffeeScript"
  • 31. whaever..WTH can you do with CoffeeScript?
  • 32. anything which JavaScript can do.
  • 33. front-end, back-end, mobile.. ec.
  • 34. but with less line of code.. ~ 30% off
  • 35. CoffeeScript compiler is writen in CoffeeScript
  • 36. Is JavaScript that bad?photo by Bryan Gosline
  • 37. the good partsphoto by Steve Ganz
  • 38. CoffeeScript =English-like grammar +nice Synactic Sugar + Goodies
  • 39. Syntax 語法
  • 40. indenations rule,whiespace maters!
  • 41. } } }}
  • 42. } } }}
  • 43. String Inerpolation
  • 44. greeting = "hi, " + name + ", " + msg
  • 45. greeting = "hi, #{name}, #{msg}"
  • 46. semicolon
  • 47. semicolon
  • 48. var
  • 49. var
  • 50. ->
  • 51. say_hello = (msg) -> console.log "hello, JSDC"
  • 52. var say_hello;say_hello = function(msg) { return console.log("hello, JSDC");};
  • 53. default parameer
  • 54. say_something = (msg = "JSDC") -> console.log "say #{msg}"
  • 55. var say_something;say_something = function(msg) { if (msg == null) { msg = "JSDC"; } return console.log("say " + msg);};
  • 56. ( ) is not always necessary.
  • 57. greeting("eddie", "how are you");
  • 58. greeting "eddie", "how are you"
  • 59. everything is an expression
  • 60. return is not necessary.
  • 61. var hello;hello = function() { return "hi, JSDC";};
  • 62. hello = -> "hi, JSDC"
  • 63. Array
  • 64. var a;a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
  • 65. a = [1..10]
  • 66. Loop
  • 67. console.log i for i in [1..10]
  • 68. var i, _i;for (i = _i = 1; _i <= 10; i = ++_i) { console.log(i);}
  • 69. console.log "YES" if oday == JSDC
  • 70. Sugar
  • 71. yes, no
  • 72. A: “would you marry me?” B: true
  • 73. A: “would you marry me?” B: yes
  • 74. console.log "go home" if oday isnt "JSDC"
  • 75. OO
  • 76. Hello.prootype.greeting = function(name) { console.log("hi, " + name);};
  • 77. class Hello greeting: (name) -> console.log "hi, #{name}"
  • 78. class Hello construcor: (@name) -> greeting: (msg) -> "hi, #{@name}, #{msg}"
  • 79. var Hello;Hello = (function() { Hello.name = Hello; function Hello(name) { this.name = name; } Hello.prootype.greeting = function(msg) { return "hi, " + this.name + ", " + msg; }; return Hello;})();
  • 80. Diff? 差別?
  • 81. the Original Way Your Brain JavaScript Browser
  • 82. the CoffeeScript way Your Brain CoffeeScript JavaScript Browser
  • 83. lots of languages that compile o JS http://goo.gl/nkAkQ
  • 84. Ref參考
  • 85. RTFM, its awesome! http://coffeescript.org/
  • 86. or my shameless promotion blog http://blog.eddie.com.tw/caegory/coffeescript/
  • 87. Let’s get our feet wet!photo by jlhopes
  • 88. Demo 展示
  • 89. But.. 巴特..
  • 90. CoffeeScript is not so perfect
  • 91. Readability != Comprehension
  • 92. People may still wrieCoffeeScript as horribly as they wroe JavaScript..
  • 93. indenations rule,whiespace maters!
  • 94. ( ) is not always necessary.
  • 95. Debugging ool?
  • 96. Youve beter have a humanCoffeeScript compiler in your head!
  • 97. Then.. 然後..
  • 98. CoffeeScript is not used o replace JavaScript.
  • 99. If you don’t know Javascript, andyou think CoffeeScript can saveyour life..
  • 100. you would be in trouble.
  • 101. So.. 所以..
  • 102. Who is using CoffeeScript?
  • 103. actually, I dont really care!
  • 104. Who wont need this?
  • 105. People who dont like CoffeeScript.
  • 106. People who already knowjavascript(the good parts) verywell.
  • 107. Who might need/like this?
  • 108. someone who dont like ;
  • 109. someone who dont like { }
  • 110. someone who dont like the PROTOTYPE.
  • 111. Rails developer
  • 112. Anyway 總之
  • 113. Should I learn CoffeeScript?
  • 114. Is it worth it?
  • 115. IMHO 拙見
  • 116. You should..
  • 117. learn JavaScript!
  • 118. learn JavaScript!
  • 119. learn JavaScript!
  • 120. learn JavaScript!
  • 121. .. and use CoffeeScript !
  • 122. oally worth it!
  • 123. I cant go back anymore!
  • 124. give it a try
  • 125. Happy? 快樂?
  • 126. END 結束
  • 127. Conacts高見見龍龍 Websie Blog http://www.eddie.com.tw http://blog.eddie.com.tw Plurk http://www.plurk.com/aquarianboy Facebook http://www.facebook.com/eddiekao Google Plus http://www.eddie.com.tw/+ Twiter https://twiter.com/#!/eddiekao Email eddie@digik.com.tw Mobile +886-928-617-687 photo by Eddie

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