新しく言語を学ぶ私のやり方 / My way of learning a new lang

Jan 22, 2019 / Fukuoka.rsでLT発表した資料

Transcript

1. ৽͘͠ݴޠΛֶͿࢲͷ΍Γํ 5PNPIJTB
   0EB
   Š
   (.0
   1FQBCP
   *OD
   'VLVPLBST
   +BO
   
   
2. Fukuoka.rs #1 !MJOZPXT CMPH
   UPNPIJTBPEBDPN
   (.0ϖύϘ
   
   ϓϦϯγύϧΤϯδχΞ 2
3. Fukuoka.rs #1 3 8&# %#
   13&44
   WPM
   )BTIJ$PSQ
   7BVMUͷهࣄدߘ ෱Ԭͷ(PMBOHίϛϡχςΟ
   'VLVPLBHPͷओ࠵ͷਓ MJOVYϢʔβͷ໊લղܾΛ
   (JU)VC͔ΒϚοϐϯά͢Δ
   ιϑτ΢ΣΞͷ։ൃ
4. Fukuoka.rs #1 QSJOUMO )FMMP
   3VTUBDFBOT  4
5. Fukuoka.rs #1 3VTUͱࢲ w /P
   3VOUJNFɺ/P
   ($
   ͢͝ʔʔʔ͍
   w ͳ͔ͳ͔ίϯύΠϧ௨Βͳ͍ͬͯฉ͘
   w (P࢖ͬͯͯࠔΔ͜ͱͳ͍ΑʁԿ͕خ͍͠ͷʁ
   w ͣͬͱ͜ͷௐࢠͳͷͰɺൃදυϦϒϯͰษڧΛ։࢝͠Α͏ʂ
   w ΜͰɺؾ͍ͮͨΒਖ਼݄΋ऴΘͬͯษڧձͷिؒલ 5
6. Fukuoka.rs #1 ͋͞ษڧΛ࢝ΊΔͧ w ͱΓ͋͑ͣ؀ڥͷߏஙʢ3VTUVQೖΕͨΓɺWJN
   QMVHJO୳ͨ͠Γʜʣ
   w ͱΓ͋͑ͣ3VTUͷ5IF
   #PPLΛಡΈ࢝ΊΔ
   w ͙͢ʹ಄ʹೖͬͯ͜ͳ͘ͳͬͨͷͰखΛಈ͔࢝͠ΊΔ
   w ϦϙδτϦ࡞ͬͯࣸܦ
   HJUIVCDPNMJOZPXTSVTUMFBSOJOH
   w ͦͯ͠๞͖ͯɺHJUIVCDPNͰ⭐ͷ୔ࢁ͍ͭͨ3VTUϦϙδτϦΛோΊΔ
   w ऴྃʜ 6
7. Fukuoka.rs #1 aϞνϕʔγϣϯ͕ଓ͔ͳ͍κ
   7
8. Fukuoka.rs #1 ϞνϕʔγϣϯΛ୳ཱྀ͢ w Α͏͠ɺϞνϕʔγϣϯΛͻͶΓग़ͧ͢
   w 3VTUͬͯԿ͕͍͍ͷʂʢ࠶ʣΦϑΟγϟϧαΠτʹ͋Δ͸ͣ
   w ͔͍ͭͲ͜Ζ͸Ͳ͜ʁʁʢ੾࣮ʣ͜Ε΋ɺΦϑΟγϟϧαΠτʹ͋Δ͸ͣ
   w ࣗ෼ͩͬͨΒͲ͏࢖͏ 8
9. Fukuoka.rs #1 3VTUͷಛ௃ w ͱͯ΋ߴ଎ͰϝϞϦޮ཰͕Α͍ͷͰϋΠύϑΥʔϚϯεɺͦͯ͠૊ΈࠐΈ ͱ͔؆୯ʹଞݴޠͱ౷߹Ͱ͖Δ
   w ๛෋ͳܕͱ0XOFSTIJQϞσϧʹΑΓϝϞϦ΍εϨου͕҆શͰ͋Δ͜ͱΛ อূ͢Δɺ͔ͩΒଟ͘ͷछྨͷόάΛίϯύΠϥͰഉআͰ͖Δ
   w ๛෋ͳυΩϡϝϯτɺݡ͍ίϯύΠϥɺ౷߹͞ΕͨύοέʔδπʔϧͰੜ ࢈ੑߴ͍ 9
10. Fukuoka.rs #1 3VTUͷΩϟονίϐʔ
    ৴པੑ΍ޮ཰ੑͷߴ͍ιϑτ΢ΣΞΛ
    ୭΋͕ॻ͚ΔྗΛ༩͑ΔΑʂ
    ·͔͡ʜ
    10
11. Fukuoka.rs #1 3VTU
    WT
    (P 11 Rust Go Performance Great Good Simple and Readable Code OK Great Concurrency Yes Yes Forcing error checking Yes No
12. Fukuoka.rs #1 ϚγϯϦιʔεΛ࢒Βͣ࢖͍੾Δ·Ͱ
    ύϑΥʔϚϯεΛॏࢹ͍ͨ͠ͷͳΒ3VTUʂ 12
13. Fukuoka.rs #1 3VTUͷ͔͍ͭͲ͜Ζ w ύϑΥʔϚϯεॏࢹͰ҆શͳιϑτ΢ΣΞͷ։ൃͰ͋Ε͹Ұ୒Ͱ͠ΐ͏ʂ ʢύϑΥʔϚϯεͬͯ͋ͱ͔Βཁٻ͞ΕΔʁʣ
    w 3VTUͰͦΕͳΓʹੜ࢈ੑߴΊΔʹ͸࿅౓͕ඞཁͦ͏ͳͷͰɺڭҭମ੍΋͋ Δ։ൃɺ·ͨ͸ख़࿅ूஂͰͷ։ൃ
    w ະख़ऀ͸ɺ044ͱ͔ɺԶಘ$-*πʔϧͱ͔͸ͽͬͨΓͳͷͰ͸ʁ 13
14. Fukuoka.rs #1 ఆΊͨΰʔϧ w ·ͣಈ͘΋ͷΛ࡞Ζ͏
    w ࣮૷ͷਖ਼͠͞ɺεϚʔτ͞͸ؾʹ͠ͳ͍
    w ࣮૷͍ͯ͘͠தͰɺͭ͗ʹͭͳ͕Δ՝୊Λݟ͚ͭΔ
    w ΰʔϧΛ໌֬ʹ͢Δͱ΍Δ͜ͱ͕ఆ·ͬͯ΍Δؾ͕ग़Δ
    
    w Α͠ʂʂʂʂʂʂʂʂʂʂʂ 14
15. Fukuoka.rs #1 15
16. Fukuoka.rs #1 ࡞ͬͨ$-* w (FP*1ͷ஍ཧ৘ใΛ*1Ͱݕࡧͯ͠දࣔ͢Δ͘Μ
    IUUQTHJUIVCDPNMJOZPXTHMJQ
    w 
    XFFLͰ΋ಈ͘΋ͷ͸Ͱ͖ͨʂ
    w ͦͯ͠ɺDSBUFTJPͰύοέʔδΛެ։Ͱ͖ͨʂ 16
17. Fukuoka.rs #1 ͭ·͍ͣͨͱ͜Ζ w ϑΝΠϧ෼ׂͨ͠ࡍͷNPEVMFͷ֓೦
    w ϥΠϒϥϦͱ$-*ͷ྆ํΛఏڙ͢ΔύοέʔδͷσΟϨΫτϦߏ੒
    w ΤϥʔνΣοΫڧ੍ͷͨΊͷΤϥʔॲཧ
    w VOXSBQ͹͔ͬΓʹͳͬͯɺԿͳͷ͜Εʁʁʁ
    w JGͷதͰNVUBCMFͳม਺ߋ৽ͰౖΒΕΔ 17
18. Fukuoka.rs #1 18
19. Fukuoka.rs #1 ݟ͖͑ͯͨ՝୊ w ςετॻ͍ͯͳ͍ͷʢDPWFSBHF΋ͱΔͧʣ
    
    w ͏·͘ॻ͚ͯͳ͍ͷʢHFOFSJDT΍USBJU࢖͑͹៉ྷʹͳΔ͸ͣʣ
    w ͦ΋ͦ΋ɺ΍ͬͯΔ͜ͱ͋ͬͯΔʁʁ
    w ഑෍ʹDBSHP
    JOTUBMM͡Όͳͯ͘$SPTT
    $PNQJMJOH͓͖͍ͯͨ͠΍Μ
    w ฒߦͯ͠ɺ଍Γͯͳ͍஌ࣝΛʮ5IF
    #PPLΛ໢ཏʯʮຊΛಡྃʯͰಘΔ 19
20. Fukuoka.rs #1 ։ൃυϦϒϯͷԿ͕ྑ͍͔ w ࣗ෼͝ͱʹͳΔͷͰ಴࠳͠ʹ͍͘
    
    ໷ͳ΂ͯ͠΍ͬͯ·͏
    
    w ͠ΐ͏΋ͳ͍͜ͱͰΑͭ͘·ͣ͘
    ϑϥετϨʔγϣϯཷ·Δ
    
    w ମܥతʹֶͿҙཉ͕༙͘ʂ
    w ΍ͬͨ݁Ռ͕࢒Δ
    ΍͹͍΋ͷ͕ग़དྷͯஏ͔͍ͣ͠
    
    w ΍͹͍ίʔυΛͪΌΜͱ͢Δҙཉ͕༙͘ʂ- 20
21. Fukuoka.rs #1 aͳΜ͔ͩΜͩ݁Ռతʹྑ͍
    ☺ 21
22. Fukuoka.rs #1 ·ͱΊ ৽͘͠ݴޠΛֶͿͨΊʹҎԼͷखॱͰ͢͢Ί·ͨ͠ɻ
    w ·ͣ͸ֶͿཧ༝Λ୳͢ɺͳ͚Ε͹࡞Δ
    w ։ൃυϦϒϯͰखΛಈ͔͠ͳ͕ΒֶͿʢ໌֬ͳΰʔϧʣ
    w ڵຯ͕༙͍͖ͯͨΒମܥతʹֶͿ
    w ͦͯ͠·ͨ࡞Δʂ 22
23. Fukuoka.rs #1 'VLVPLBSTͷΈͳ͞Μ
    3VTU
    ڭ͍͍͍͍͑ͯͩ͘͞
    ίʔυϨϏϡʔر๬
    ͝੩ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠ 23
24. Fukuoka.rs #1 3FGFSFODFT w 5IF
    #PPL
    IUUQTEPDSVTUMBOHPSHCPPL
    w 3VTU
    IUUQTXXXSVTUMBOHPSH
    w 4IPVME
    *
    3VTU
    PS
    4IPVME
    *
    (P
    IUUQTDPEFCVSTUJPTIPVMEJSVTUPSTIPVMEJ HPBFFB
    w 3JQ(SFQ
    IUUQTHJUIVCDPN#VSOU4VTIJSJQHSFQ
    w #BU
    IUUQTHJUIVCDPNTIBSLEQCBU
    w ϓϩάϥϛϯά3VTU
    IUUQTXXXPSFJMMZDPKQCPPLT 24