Kotlinの短絡評価について

Transcript

1. $POOFIJUP
   *OD ϚϚͷҰาΛࢧ͑Δ ,PUMJOͷ୹བྷධՁʹ͍ͭͯ
2. ෋ా݈ೋ !UPNNZLX !UPNNZLX ίωώτגࣜձࣾ
   "OESPJE
   &OHJOFFS
3. αʔϏε঺հ ϚϚϦ
4. ಥવͰ͕͢ɺ࣍ͷͭͷ,PUMJOίʔυͷҧ͍͕ Θ͔Γ·͔͢ʁ
5. if (true || false) { } if (true or false) { }
6. if (true || false) { } if (true or false) { } ಉ͡Α͏ʹݟ͑Δ͕࣮͸ҟͳΔڍಈ
7. ͋Εɺ͜ͷ͕ͭಉ͡ҙຯͩͱࢥ͍ͬͯͨʜʁ if (true || false) { } if (true or false) { }
8. ຊ೔͸,PUMJOͷ୹བྷධՁʹ͍ͭͯ
9. ૣ଎ʮPSʯɺʮBOEʯͷίʔυΛ೷͍ͯΈΔ
10. IUUQTHJUIVCDPN+FU#SBJOTLPUMJOCMPC NBTUFSDPSFCVJMUJOTOBUJWFLPUMJO#PPMFBOLU
11. IUUQTHJUIVCDPN+FU#SBJOTLPUMJOCMPC NBTUFSDPSFCVJMUJOTOBUJWFLPUMJO#PPMFBOLU UIJT
    GVODUJPO
    EPFT
    OPU
    TIPSUDJSDVJU
    FWBMVBUJPO
12. ୹བྷධՁ TIPSUDJSDVJU
    FWBMVBUJPO ͱ͸ʁ
13. ୹བྷධՁ͸࿦ཧԋࢉࢠͷࠨลɺӈลͷධՁΛ ද͢ධՁํ๏Ͱ࠷খධՁͱ΋ݺ͹ΕΔɻ
14. if (true || false) { } ୹བྷධՁ
15. if (true || false) { } ୹བྷධՁ
16. if (true || false) { } ʮUSVFʯ͚ͩධՁ͞ΕΔ ୹བྷධՁ
17. ҰํͰ௨ৗͷ࿦ཧԋࢉࢠ͸ʁ
18. ௨ৗͷ࿦ཧԋࢉࢠ if (true or false) { }
19. if (true or false) { } ௨ৗͷ࿦ཧԋࢉࢠ
20. if (true or false) { } ʮUSVFʯ͕ධՁ͞ΕΔ ௨ৗͷ࿦ཧԋࢉࢠ
21. if (true or false) { } ʮUSVFʯ͕ධՁ͞ΕΔ ௨ৗͷ࿦ཧԋࢉࢠ
22. if (true or false) { } ʮUSVFʯ͕ධՁ͞ΕΔ ʮGBMTFʯ΋ධՁ͞ΕΔ ௨ৗͷ࿦ཧԋࢉࢠ
23. ௨ৗͷ࿦ཧԋࢉࢠͷར༻ํ๏͸ʁ
24. IUUQTHJUIVCDPN+FU#SBJOTLPUMJOCMPCNBTUFSCVJME DPNNPOTSDPSHKFUCSBJOTLPUMJOJODSFNFOUBM *ODSFNFOUBM+WN$BDIFLU
25. IUUQTHJUIVCDPN+FU#SBJOTLPUMJOCMPCNBTUFSCVJME DPNNPOTSDPSHKFUCSBJOTLPUMJOJODSFNFOUBM *ODSFNFOUBM+WN$BDIFLU
26. "OESPJEͰͷར༻ intent.addFlags( Intent.FLAG_ACTIVITY_SINGLE_TOP or Intent.FLAG_ACTIVITY_CLEAR_TOP )
27. "OESPJEͰͷར༻ intent.addFlags( Intent.FLAG_ACTIVITY_SINGLE_TOP or Intent.FLAG_ACTIVITY_CLEAR_TOP ) Ϗοτԋࢉͱͯ͠ར༻͍ͯ͠Δ
28. +BWBͱ,PUMJOൺֱ
29. ·ͱΊ
30. w ,PUMJOͷʮPSɺBOEʯ͸ɺʮccɺʯ ͱಉ͡ҙຯͰ͸ͳ͍ w ୹བྷධՁͷ࿦ཧԋࢉࢠɺ௨ৗͷ࿦ཧԋࢉ ࢠ͕͋Δ
31. ͋Γ͕ͱ͏͍͟͝·ͨ͠ʂ