Idio~ma~tic Kotlin (droidcon Vienna 2019)

‘Idiomatic’ is a word often used by Kotlin experts to describe elegant patterns or solutions that make excellent use of Kotlin’s features. Let’s turn this attitude around for a change, and have some fun by taking a look at the worst ways you can twist and abuse language features to take shortcuts, create tricky solutions, achieve exciting syntax, or confuse others who dare enter your codebase.

Talk recording: https://www.youtube.com/watch?v=XzBhrNq0nvQ

Transcript

1. tic Kotlin
   ma
   Idio
   Márton Braun
   zsmb.co zsmb13
   braun.marton@autsoft.hu
   

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2. Idiotic Kotlin
   Márton Braun
   zsmb.co zsmb13
   braun.marton@autsoft.hu
   

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3. Odd operations
   

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14. https://leanpub.com/effectivekotlin
    

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15. https://leanpub.com/effectivekotlin
    

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16. https://leanpub.com/effectivekotlin
    

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17. https://leanpub.com/effectivekotlin
    

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18. https://leanpub.com/effectivekotlin
    

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19. https://leanpub.com/effectivekotlin
    

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20. https://leanpub.com/effectivekotlin
    

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21. https://leanpub.com/effectivekotlin
    

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22. https://leanpub.com/effectivekotlin
    

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23. https://todd.ginsberg.com/post/kotlin-random-extension/
    

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24. ＼ ツ ／
    https://todd.ginsberg.com/post/kotlin-random-extension/
    

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25. ＼ ツ ／
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    https://todd.ginsberg.com/post/kotlin-random-extension/
    

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26. ＼ ツ ／
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    https://todd.ginsberg.com/post/kotlin-random-extension/
    

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27. ＼ ツ ／
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    https://todd.ginsberg.com/post/kotlin-random-extension/
    

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28. ＼ ツ ／
    https://todd.ginsberg.com/post/kotlin-random-extension/
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29. https://todd.ginsberg.com/post/kotlin-random-extension/
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30. https://todd.ginsberg.com/post/kotlin-random-extension/
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31. https://todd.ginsberg.com/post/kotlin-random-extension/
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32. https://todd.ginsberg.com/post/kotlin-random-extension/
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33. Spam
    

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34. https://zsmb.co/talks/#typical-kotlin
    

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35. https://zsmb.co/talks/#typical-kotlin
    

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36. https://zsmb.co/talks/#typical-kotlin
    

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37. https://zsmb.co/talks/#typical-kotlin
    

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38. https://zsmb.co/talks/#typical-kotlin
    

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39. https://zsmb.co/talks/#typical-kotlin
    

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40. https://zsmb.co/talks/#typical-kotlin
    

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41. https://zsmb.co/talks/#typical-kotlin
    

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42. https://zsmb.co/talks/#typical-kotlin
    

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43. https://zsmb.co/talks/#typical-kotlin
    

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44. https://zsmb.co/talks/#typical-kotlin
    

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45. https://zsmb.co/talks/#typical-kotlin
    

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46. https://zsmb.co/talks/#typical-kotlin
    

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47. https://zsmb.co/talks/#typical-kotlin
    

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48. https://zsmb.co/talks/#typical-kotlin
    

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49. https://zsmb.co/talks/#typical-kotlin
    

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59. https://medium.com/@elizarov/dealing-with-absence-of-value-307b80534903
    

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60. https://medium.com/@elizarov/dealing-with-absence-of-value-307b80534903
    

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61. https://medium.com/@elizarov/dealing-with-absence-of-value-307b80534903
    

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62. https://medium.com/@elizarov/dealing-with-absence-of-value-307b80534903
    

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63. https://medium.com/@elizarov/dealing-with-absence-of-value-307b80534903
    

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64. https://medium.com/@elizarov/dealing-with-absence-of-value-307b80534903
    

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65. Wishlist features
    

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66. https://www.reddit.com/r/Kotlin/comments/cdotu0/intellectuals_will_understand/
    

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67. https://www.reddit.com/r/Kotlin/comments/cdotu0/intellectuals_will_understand/
    

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68. https://www.reddit.com/r/Kotlin/comments/cdotu0/intellectuals_will_understand/
    

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69. https://www.reddit.com/r/Kotlin/comments/cdotu0/intellectuals_will_understand/
    

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70. https://www.reddit.com/r/Kotlin/comments/cdotu0/intellectuals_will_understand/
    

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71. https://www.reddit.com/r/Kotlin/comments/cdotu0/intellectuals_will_understand/
    

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72. https://www.reddit.com/r/Kotlin/comments/cdotu0/intellectuals_will_understand/
    

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73. https://www.reddit.com/r/Kotlin/comments/cdotu0/intellectuals_will_understand/
    

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74. https://www.reddit.com/r/Kotlin/comments/cdotu0/intellectuals_will_understand/
    

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75. https://www.reddit.com/r/Kotlin/comments/cdotu0/intellectuals_will_understand/
    

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76. https://twitter.com/marcinmoskala/status/1007640373970329600
    

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77. https://twitter.com/marcinmoskala/status/1007640373970329600
    

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78. https://twitter.com/marcinmoskala/status/1007640373970329600
    

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79. https://twitter.com/marcinmoskala/status/1007640373970329600
    

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80. https://twitter.com/marcinmoskala/status/1007640373970329600
    

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81. https://twitter.com/marcinmoskala/status/1007640373970329600
    

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82. https://twitter.com/marcinmoskala/status/1007640373970329600
    

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83. https://twitter.com/marcinmoskala/status/1007640373970329600
    

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84. https://twitter.com/marcinmoskala/status/1007640373970329600
    

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96. JavaScript
    

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109. Puzzlers
     

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123. https://stackoverflow.com/q/48037330/4465208
     

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124. https://stackoverflow.com/q/48037330/4465208
     

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125. https://stackoverflow.com/q/48037330/4465208
     

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126. https://stackoverflow.com/q/48037330/4465208
     

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127. https://stackoverflow.com/q/48505963/4465208
     

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128. https://stackoverflow.com/q/48505963/4465208
     

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129. https://stackoverflow.com/q/48505963/4465208
     

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130. https://stackoverflow.com/q/48505963/4465208
     

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131. https://stackoverflow.com/q/48505963/4465208
     

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132. https://stackoverflow.com/q/48505963/4465208
     

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133. https://stackoverflow.com/q/48505963/4465208
     

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134. https://stackoverflow.com/q/48505963/4465208
     

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135. https://stackoverflow.com/q/48505963/4465208
     

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136. https://stackoverflow.com/q/48505963/4465208
     

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137. https://stackoverflow.com/q/48505963/4465208
     

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138. https://stackoverflow.com/q/48505963/4465208
     

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139. https://stackoverflow.com/q/48505963/4465208
     

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140. Sources
     • Effective Kotlin - Marcin Moskala
      https://leanpub.com/effectivekotlin
     • Abusing Kotlin's Unicode Support for Fun - Todd Ginsberg
      https://todd.ginsberg.com/post/kotlin-random-extension/
     • Typical Kotlin - Márton Braun
      https://zsmb.co/talks/#typical-kotlin
     • Dealing with the absence of value - Roman Elizarov
      https://medium.com/@elizarov/dealing-with-absence-of-value-
     307b80534903
     

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141. Sources
     • Reddit post - /u/Tok-A-Mak
      https://www.reddit.com/r/Kotlin/comments/cdotu0/intellectuals_will_understand/
     • Tweet - Marcin Moskala
      https://twitter.com/marcinmoskala/status/1007640373970329600
     • Stack Overflow question – Hi Lo
      https://stackoverflow.com/q/48037330/4465208
     • Stack Overflow question - cuihtlauac
      https://stackoverflow.com/q/48505963/4465208
     

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142. Image credits
     • First cover
      https://unsplash.com/photos/Co_hWX_XtEk
     • Second cover
      https://www.pexels.com/photo/brown-tabby-cat-lying-on-sofa-755834/
     • Questions slide
      https://unsplash.com/photos/9SWHIgu8A8k
     

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143. zsmb.co/talks
     zsmb13
     

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144. Questions?
     Márton Braun
     zsmb.co zsmb13
     braun.marton@autsoft.hu
     

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