なぜ僕はプログラミングが苦手なのか / Why am I not good at programming

2019.2.1 WEBエンジニア勉強会11

Transcript

1. WEBΤϯδχΞษڧձ#11
   2019. 2.1
   

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2. ʮͳͥ๻͸ϓϩάϥϛϯά͕ۤखͳͷ͔ʯ
   Presentation by VTRyo (Web Developer)
   

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3. લ୅ະฉ

   ʰͰ͖ͳ͍ܥLTʱ
   ஏ΋֎ฉ΋ͳ͍ͷͰ͋Δ
   

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4. ͸͡Ί·ͯ͠
   VTRyoͱॻ͍ͯϦϣ΢Ͱ͢
   Twitterʢ@3s_hvʣ
   ʢ@3s_hvʣ
   

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5. ͸͡Ί·ͯ͠
   ʢ@3s_hvʣ
   גࣜձࣾϚπϦΧ
   SREνʔϜ
   ΤϯδχΞ࠾༻૭ޱ͸͡Ί·ͨ͠
   

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6. ͸͡Ί·ͯ͠
   ʢ@3s_hvʣ
   झຯ
   స৬ࢧԉ
   ൃ৴͢ΔϚϯʢϒϩάɺొஃɺΠϕϯτओ
   ࠵ɺٕज़ಉਓࢽࣥචʣ
   ୭͔ͷਓੜΛฉ͘
   

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7. స৬LT#4 ΍Γ·͢
   ݱࡏ४උத
   

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8. ٕज़ॻయ
   

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9. ͬͦ͘͞ຊ୊
   

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10. લఏ
    Ansible, Terraform͸ॻ͍͍ͯͨ
    ϓϩάϥϛϯάຊ֨తʹ࢝Ίͯ̐ϲ݄
    ओͳ։ൃݴޠ͸RubyʢRoRʣ
    SREͱͯ͠ύϑΥʔϚϯεվળʹணखத
    

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11. લఏ
    ϓϩάϥϛϯά͸

    ͜Ε·Ͱ్தͰษڧ΍ΊΔ͜ͱ̎ճ
    Ұճ໨͸େֶतۀͷPerlɺೋ౓໨͸Progate
    ϝϯλʔ͸ͳ͠
    

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12. ΤϯδχΞྺ̏೥
    ϓϩάϥϛϯάྺ͸̐ϲ݄
    

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13. Ώ͑ʹϨϕϧ̌
    

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14. ҎԼʮ͓લηϯεͳ͍ʯ
    ېࢭ
    

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15. ͳͥ๻͸ϓϩάϥϛϯά͕ۤखͳͷ͔ɺ
    ϓ
    ϩ
    ϑ
    Σ
    ο
    γ
    ϣ
    φ
    ϧ
    ʹ ͳ Γ ͨ ͍
    

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16. ॳ৺ऀ͋Δ͋Δʁ
    or ࡯͕͠ѱ͍ʁ
    ΋͠΍”ηϯε͕ͳ͍”
    

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17. ”ηϯε͕ͳ͍”ͰऴΘΒͤͯ͠·ͬͨΒ
    Կ΋࢝ΊΒΕͳ͘ͳΔͰ͠ΐʔ͕ʂ
    ηϯεͳ͍ͰऴΘΒͤͨ͘ͳ͍ͷͩ
    Ͱ΋…
    

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18. ͍ࣗ͟ݾ෼ੳʂ
    ઌഐΤϯδχΞ͸ҭ੒໨ઢͰʂ
    ಉ͡ਓ͸Ұॹʹ͕Μ͹Ζ͏ʂ
    

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19. ॳ৺ऀ͋Δ͋Δ
    ͦͯ͠
    ࠷ॳͷน
    

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20. Ͷ͑ɺΤϥʔจಡΜͰͳ͘ͳ͍ʁ
    ϓ
    ϩ
    ϑ
    Σ
    ο
    γ
    ϣ
    φ
    ϧ
    ʹ ͳ Γ ͨ ͍
    

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21. ·͡ͰಡΜͰͳ͍ύλʔϯ
    ಡΈղ͚͍ͯͳ͍ύλʔϯ
    Τϥʔൃੜʂͦͷͱ͖൴͸…
    ͕͢͞ʹࠓ͸ͳ͍Ͱ͢
    

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22. ·͡ͰಡΜͰͳ͍ύλʔϯ
    ΤϥʔͰͨ ͖ͬ͞
    ॻ͍ͨͱ͔͜
    ͸΍͘௚͞Ͷ͹
    Τϥʔݟͯͳ͍
    

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23. ࣗ෼Ͱॻ͍ͨॴ͕ѱ͍ͷ͸Θ͔ͬͯΔ
    ͔ͩΒͦ͜Λม͑Δʢಡ·ͣʹม͑ʹ͍ͬͪΌ͏ʣ
    Ͱ΋Կ͕ѱ͍͔ಡΜͰͳ͍͔Βద੾ͳରԠʹͳΒͳ͍
    Α͏΍͘Τϥʔಡ΋͏ͱ͢Δ
    Կॻ͍ͯ͋Δ͔Θ͔Βͳ͍͠खؒ
    ৺ཧঢ়ଶʢ̍ྫʣ
    ࠷ॳ͸͜Ε
    ͳΜ͡Όͳ͍͔ͳ
    

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24. ͜͏ͯ͠ѱ॥؀ϧʔϓ
    

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25. յΕͨΓ͠ͳ͍͔Β
    ޲͖߹͏บΛ
    

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26. ಡΈղ͚ͯͳ͍ύλʔϯ
    γϯϓϧʹಡΈඈ͹͍ͯ͠ΔʢಡΜͰͳ͍ͱ
    ΋ݴ͏ʣ
    ܦݧ஋ෆ଍Ͱؾ͚ͮͯͳ͍
    

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27. ܦݧ஋ෆ଍Ͱؾ͚ͮͯͳ͍
    NoMethodError: undefined method

    ͺͬͱݟ͙ͯ͢Θ͔Δਓ͸
    ͦΕ͚ͩܦݧ͖ͯͨ͠ͱ͍͏͜ͱ
    ͙ͨͩ͢͠ʹݕ౼͕͔ͭ͘ͷࠩ
    ޲͖߹͍ͬͯΕ͹Θ͔ΔΑ͏ʹͳΔ
    Xyz::JobBase Error: Called abstract method.
    

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28. ಡΈղ͚ͯͳ͍ύλʔϯ
    ʮ͜͜ʹॻ͍ͯ͋Δ͡ΌΜʂʯ
    ໨͕અ݀ͰࢮΛܴ͑Δ
    

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29. ܦݧ஋͸޲͖߹ͬͨ਺ͰมΘΔ
    ϓ
    ϩ
    ϑ
    Σ
    ο
    γ
    ϣ
    φ
    ϧ
    ʹ ͳ Γ ͨ ͍
    

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30. Α͏΍͘࠷ॳͷนΛյ͢
    ͔͠͠଴͍ͬͯͨͷ͸ࣗ৴૕ࣦ
    

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31. ๻͸ϓϩάϥϛϯά͕ۤख͔΋͠Εͳ͍
    ϓ
    ϩ
    ϑ
    Σ
    ο
    γ
    ϣ
    φ
    ϧ
    ʹ ͳ Γ ͨ ͍
    

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32. ͳΜ͔࠷ॳͷนյ͢ͷʹ
    ͍͔͔࣌ؒͬͨ͢͝…
    

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33. ͔͠΋
    Twitterʹ͍ΔΈΜͳ
    ͭΑ͍ͻͱ͹͔ͬ͡ΌΜ…ʁ
    

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34. ΈΜͳ͕ηϯεͰ΍͖ͬͯͨ͜ͱ
    ๻͸ҙࣝͯ͠Α͏΍͘Ͱ͖ͨ
    

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35. ίʔυ΋׬ᘳʹॻ͚ΔΘ͚͡Όͳ͍͠
    ͜ͷ··Ͱ͸μϝ͔΋…
    

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36. ࣗ৴Λͳͨ͘͠๻͸ɺϚωʔδϟʔʹ͋Δر
    ๬Λ఻͑·ͨ͠
    ๻͸΋͏ͩΊ͔΋
    

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37. ϚωʔδϟʹݴΘΕͨ͜ͱ
    

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38. – By Manager
    “ͨͱ͑αϙʔτΛड͚ͳ͕ΒͰ΋ϓϧϦΫΛग़
    ͨ͠Μͩ͠ɺػೳͯ͠ΔΜ͡Όͳ͍Ͱ͔͢”
    

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40. ͦ͏͔ɻ೉͘͠ߟ͑͗ͯͨ͢
    

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41. ࣮͸੒ޭମݧ΋͋ͬͨ͸ͣͩ
    

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42. Τϥʔಡ·ͳ͍໰୊ͩͬͯ
    ͪΐͬͱͣͭमਖ਼͖ͯͨ͠
    

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43. ʮϓϩάϥϛϯάͰ͖Δʯͷϋʔυϧ
    ϓ
    ϩ
    ϑ
    Σ
    ο
    γ
    ϣ
    φ
    ϧ
    ʹ ͳ Γ ͨ ͍
    

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44. ࠷ॳ͸୭΋͕ΦϨΦϨίʔυ͡Όͳ͍ͷ͔͍
    ʮ׬ᘳʹʯͬͯԿΛ΋ͬͯ׬ᘳͳͷ͔ɻͦ΋
    ͦ΋׬ᘳͳ΋ͷ͸ͳ͍
    ϋʔυϧউखʹ্͛ͯΔ
    

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45. ॳ৺ऀ͋Δ͋Δʁ
    or ࡯͕͠ѱ͍ʁ
    ΋͠΍”ηϯε͕ͳ͍”
    ࠷ॳͷ໰͍
    

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46. ηϯεͱ͸ɺ
    ϓ
    ϩ
    ϑ
    Σ
    ο
    γ
    ϣ
    φ
    ϧ
    ʹ ͳ Γ ͨ ͍
    

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47. ηϯε͋Δਓɿ͜Ε·Ͱͷ؀ڥ΍ܦݧɺश׳
    ʹΑΓඞཁͳײ͕֮උΘ͍ͬͯΔਓ
    ηϯε͕ͳ͍ਓɿ·ͩश׳͕උΘ͍ͬͯͳ͍
    ͚ͩ
    ηϯεͱ͸ɺ
    ͨͱ͑͹
    தֶੜͷͱ͖͔ΒHP࡞ͬͯͨਓͱ͔
    

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48. ηϯεͱ͸ɺྑ͍श׳ͷੵΈॏͶͰ͸ͳ͍͔
    ϓ
    ϩ
    ϑ
    Σ
    ο
    γ
    ϣ
    φ
    ϧ
    ʹ ͳ Γ ͨ ͍
    

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49. ͳΒ͹ɺ๻ʹ΋΍ΕΔ͜ͱ͸͋Δ
    ϓ
    ϩ
    ϑ
    Σ
    ο
    γ
    ϣ
    φ
    ϧ
    ʹ ͳ Γ ͨ ͍
    

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50. ͦ͏৴ͯ͜͡Ε͔Β΋ਐΉ
    ϓ
    ϩ
    ϑ
    Σ
    ο
    γ
    ϣ
    φ
    ϧ
    ʹ ͳ Γ ͨ ͍
    

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51. Please Teach me!!
    I’m very quick on the uptake
    

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52. ࠳ંͨ͠Βɺಡ΋͏ɻ
    

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53. ʮͳͥ๻͸ϓϩάϥϛϯά͕ۤखͳͷ͔ʯ
    Presentation by VTRyo (Web Developer)
    ׬
    

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