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Marie and Me

Sponsored · Ship Features Fearlessly Turn features on and off without deploys. Used by thousands of Ruby developers. →
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September 22, 2013
Business
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Marie and Me

とちぎRuby会議05懇親会駄話

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track8

September 22, 2013

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Transcript

  1. ϚϦʔͱΘͨ͠ Marie and Me 2013/09/21 @track8

  2. ࣗݾ঺հ ‣ @track8ɹ ‣ ͙Μ·ͷαϥϦʔϚϯ / ϓϩάϥϚ ‣ ͙Μ·Rubyձٞ01Ͱ͸ ͓ੈ࿩ʹͳΓ·ͨ͠

  3. ۙگ

  4. ۙگ

  5. ࠲ӈͷ໏

  6. ࠲ӈͷ໏ ‣ ”ύϯ͕ແ͚Ε͹ɺ έʔΩΛ৯΂Ε͹͍͍͡Όͳ͍”

  7. ࠲ӈͷ໏ ‣ ”ύϯ͕ແ͚Ε͹ɺ έʔΩΛ৯΂Ε͹͍͍͡Όͳ͍” ϚϦʔɾΞϯτϫωοτ

  8. ͳʹ͕ྑ͍͔ ‣ ࠷ۙʹͳͬͯδϫδϫ͖͍ͯΔݴ༿ ‣ ໰୊͸ͦ͜(ύϯɺέʔΩ)͡Όͳ͍ͬͯ ͜ͱΛڭ͑ͯ͘ΕΔ

  9. tweet ‣ Կ͔΍Ζ͏ͱͨ͠ͱ͖ʹ ͭͿ΍͍ͯΈΔɻ ‣ ࣗ෼ୡ͕ղ͜͏ͱ͍ͯ͠Δ໰୊͸Կ͔ ‣ ʙͳΒʙ͍͍͡Όͳ͍

  10. ϚϦʔ ‣ Ұ୴ཱͪࢭ·ͬͯɺݴͬͯΈΔ ‣ ϚϦʔύλʔϯ ‣ Ξϯτϫωοτ໨ઢ

  11. ਎ۙͳྫ ‣ NullReferenceͷྫ֎͕ͰͨΒnullνΣο Ϋ͢Ε͹͍͍͡Όͳ͍ ‣ ྫ֎͕ग़ͨͳΒɺѲΓͭͿͤ͹͍͍͡Ό ͳ͍ ‣ ࢓༷ॻ͕ແ͍ͳΒιʔεΛݟΕ͹͍͍͡ Όͳ͍

  12. ਖ਼ղͷ৔߹΋ ‣ ίϯςΩετ͕ҧ͑͹ਖ਼͍͠ࣄ΋͋Δ

  13. ࠷ۙͷྫ ‣ NullReferenceͷྫ֎͕ͰͨΒnullνΣο Ϋ͢Ε͹͍͍͡Όͳ͍ ‣ ྫ֎͕ͰͨͳΒɺѲΓͭͿͤ͹͍͍͡Ό ͳ͍ ‣ ࢓༷ॻ͕ແ͍ͳΒιʔεΛݟΕ͹͍͍͡ Όͳ͍

  14. ࠷ۙͷྫ ‣ NullReferenceͷྫ֎͕ͰͨΒnullνΣο Ϋ͢Ε͹͍͍͡Όͳ͍ ‣ ྫ֎͕ͰͨͳΒɺѲΓͭͿͤ͹͍͍͡Ό ͳ͍ ‣ ࢓༷ॻ͕ແ͍ͳΒιʔεΛݟΕ͹͍͍͡ Όͳ͍

    /VMMΛड͚ΔࣄΛ૝ఆ͍ͯ͠Δ৔߹˓

  15. ࠷ۙͷྫ ‣ NullReferenceͷྫ֎͕ͰͨΒnullνΣο Ϋ͢Ε͹͍͍͡Όͳ͍ ‣ ྫ֎͕ͰͨͳΒɺѲΓͭͿͤ͹͍͍͡Ό ͳ͍ ‣ ࢓༷ॻ͕ແ͍ͳΒιʔεΛݟΕ͹͍͍͡ Όͳ͍

    /VMMΛड͚ΔࣄΛ૝ఆ͍ͯ͠Δ৔߹˓ ผʹ஌Βͤͨ͘ͳ͍ྫ֎˓

  16. ࠷ۙͷྫ ‣ NullReferenceͷྫ֎͕ͰͨΒnullνΣο Ϋ͢Ε͹͍͍͡Όͳ͍ ‣ ྫ֎͕ͰͨͳΒɺѲΓͭͿͤ͹͍͍͡Ό ͳ͍ ‣ ࢓༷ॻ͕ແ͍ͳΒιʔεΛݟΕ͹͍͍͡ Όͳ͍

    /VMMΛड͚ΔࣄΛ૝ఆ͍ͯ͠Δ৔߹˓ Α͋͘Δ࿩ ผʹ஌Βͤͨ͘ͳ͍ྫ֎˓

  17. Ξϯτϫωοτ໨ઢ ‣ ࢲͷΑ͏ͳ۪ຽʹ͸ແ͍৽ͨͳࢹ఺ ‣ ϗϯτͷͦΕྑ͍ͷʁ ‣ ৭ʑͳ֯౓͔Β؍ͯΈΑ͏ ‣ Կࣄ΋ਖ਼͍͠໘ͱѱ͍໘͕͋Δ

  18. ઈରѱ ‣ ΈΜͳ͕ಡΊΔ͔Β࢓༷ॻ͸ExcelͰॻ͚ ͹͍͍͡Όͳ͍ ‣ όʔδϣϯ؅ཧπʔϧΛ࢖Θͳ͍ͳΒɺ มߋཤྺ͸ίϝϯτʹॻ͚͹͍͍͡Όͳ ͍

  19. ઈରѱ ‣ ΈΜͳ͕ಡΊΔ͔Β࢓༷ॻ͸ExcelͰॻ͚ ͹͍͍͡Όͳ͍ ‣ όʔδϣϯ؅ཧπʔϧΛ࢖Θͳ͍ͳΒɺ มߋཤྺ͸ίϝϯτʹॻ͚͹͍͍͡Όͳ ͍ ΍Ίͯ

  20. ઈରѱ ‣ ΈΜͳ͕ಡΊΔ͔Β࢓༷ॻ͸ExcelͰॻ͚ ͹͍͍͡Όͳ͍ ‣ όʔδϣϯ؅ཧπʔϧΛ࢖Θͳ͍ͳΒɺ มߋཤྺ͸ίϝϯτʹॻ͚͹͍͍͡Όͳ ͍ ΍Ίͯ ࢖ͬͯ

  21. ৹ٞத ‣ privateͳmethodʹ͸instance_evalͰΞΫ ηεͪ͠Ό͑͹͍͍͡Όͳ͍ ‣ Πϯελϯεม਺ʹ͸instance_evalͰΞ Ϋηεͪ͠Ό͑͹͍͍͡Όͳ͍

  22. ਎ۙͳྑ͍ྫ ‣ ಢ໦͕ԕ͍ͳΒ ܈അʹ͘Ε͹͍͍͡Όͳ͍

  23. Ϗό ‣ ϏόɾΞϯτϫωοτ

  24. ࠷ޙʹ ‣ ϚϦʔ͚ͩʹΫϏΛ ੾ΒΕͳ͍Α͏ʹ ‣ ແࣄʹ2013೥౓ԼظΛ ܴ͍͑ͨͰ͢