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『中級者』の僕たちは何が出来るのか、 または『初心者』に 語るときに僕が考えること
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pastak
April 23, 2016
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『中級者』の僕たちは何が出来るのか、 または『初心者』に 語るときに僕が考えること
京大マイコンクラブ新勧説明会4月14日回での発表資料です
pastak
April 23, 2016
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Transcript
ʰதڃऀʱͷͨͪԿ͕ ग़དྷΔͷ͔ɺ ·ͨʰॳ৺ऀʱʹ ޠΔͱ͖ʹ͕ߟ͑Δ͜ͱ Pasta-K 2016/04/14
[email protected]
͜Μʹͪ
Πϯλʔωοτ׆ಈ twitter.com/pastak id: Pasta-K pastak.hatenablog.com pastak-diary.hatenadiary.com github.com/pastak
KMCͰͷ׆ಈ KMC 37 ใ OSC Kyotoग़ల ɹYAPCεϙϯαʔ࡞ઓ JavaScriptͰੈքฏ2014
ΞϧόΠτ d Πϯλʔϯ Ն Πϯλʔϯ Ն Πϯλʔϯ ౙ
None
य़ٳΈͷࢥ͍ग़
None
େࡕࢢͷެཱதֶߍ Ͱখதֶੜʹ4DSBUDI ϓϩάϥϛϯάΛϲ݄ ؒڭ͖͑ͯͨͧ
㊗
ίʔε ଐʂ
None
݄༵
େֶͷڭ ʹߦ͘
ڭͷਓͱ ཤमཁཡͱද Λݟͳ͕Β ྑ͘ࢉ
ʮ͜Εճੜͷ˕͔ͩΒ0, Ͱ͢ΑͶʯʮ͜Εͱ͜Εͱ͜Ε Λͯ͜͜͠·Ͱ୯Ґʯ ʮ͔֬ʹʯʮ͜ͷͭ˕͔ͩ Βશ෦Ͱ୯Ґʯʮ;Ήʯ ʮશ෦ͯ͠୯Ґʯʮ͔֬ʹʯ ʮ݅ຬͨͯ͠·͢Ͷʯ ʮͰ͢ΑͶʯ
None
৽ೖੜʹ ͍͑ͨ͜ͱ
࠷ޙ·Ͱ ఘΊͳ͍
ࣗΛ ৴ͯ͡ʂ
৽ೖੜʹ ͍͑ͨ͜ͱ ʲऴΘΓʳ
ࣗݾհͷ࠷ޙʹ ߃ྫͷ/), ग़ԋͷࢥ͍ग़հ ίʔφʔ
None
ΞχϝϑΝϯ
None
ຊͷ༰ ʹ͍ͭͯ
None
͍͑ͨ ͜ͱ
෦һ͚
lॳ৺ऀzͱ ͖߹͏ͱ͖ʹ ߟ͍͑ͨ͜ͱ
৽ೖੜ͚
ྑ͍ײ͡ʹlॳ৺ऀzΛ ൈ͚ग़ͨ͢Ίͷώϯτ
⚠ҙࣄ߲⚠ ͜ͷൃද,.$ٴͼಛఆͷஂମɾݸਓʹؔͯ͠൷Λ ߦ͏ͷͰͳ͍ɻྫͱͯ͠ಛఆͷݸਓͷൃݴঢ়گΛ հ͢Δ߹͕͋Δ͕ɺ͋͘·Ͱྫͷͭͱͯ͠հ͢ ΔͷͰ͋ΓɺͦΕҎ্ͷҙਤ͋Γ·ͤΜɻ͠Ҏ߱ ͷྫࣄ߲ʹ͕ࣗͯ·Δͱࢥͬͨ߹Ͱ͋ͬͯ ই͖ͭ͗ͨ͢Γ͠ͳ͍Α͏ʹ͍ͯͩ͘͠͞ɻ͜ͷൃදͷ ༰ʹ͍ͭͯ!QBTUBLͷݸਓతͳҙݟͰ͋Γ·͢ɻ ·ͨ༰ʹ͍ͭͯٞͷ༨͕͋Δͱࢥ͏ͷͰɺ͝ҙ ݟ͝ײ͕͋Εੋඇ!QBTUBL·Ͱ͓د͍ͤͩ͘͞ɻ
લఏೝࣝ
,.$෦һ lதڃऀz Ҏ্
l͠ΐ΅͍z l͓·͡ͳ͍z lೖz
l͠ΐ΅͍z
͠ΐ΅͍ JT
ຊ࣭Ͱͳ͍͜ͱ ͍͍ͭͭ৭ʑ ͕ٞͪ͠
None
ʮ༧ࢉ৹ٞձͰٞͷ߲ ͷ৹ٞʹཁ͢Δ࣌ؒɺͦͷ ߲ʹ͍ͭͯͷࢧग़ֹʹൺ ྫ͢Δʯʢͭ·Γۙͳ͜ͱ ΄Ͳ୭͕ҙݟΛݴ͑ΔͷͰ ৹͕ٞ࣌ؒ͘ͳΔʣ http://www.navigate-inc.co.jp/term/term-ha.html ύʔΩϯιϯͷ๏ଇ ͷ߲ΑΓҾ༻
'SFF#4%ͷίϛϡχςΟ Ͱࣗసंஔͷٞ CJLFTIFEEJTDVTTJPO ͱݺΜͰ͍Δ http://0xcc.net/blog/archives/000135.html
ྫΛ հ
ͲΕͰදه͢Δͷ͕ྑ͍͔ CJLFTIFE શ෦খจࣈ CJLFTIFE εϖʔε CJLFTIFE μογϡ
CJLF@TIFE Ξϯμʔόʔ CJLF4IFE DBNFM$BTF
ԿΛ͏ͷ͕ྑ͍͔ 7JNWT&NBDT 3VCZWT1ZUIPO K2VFSZWT3FBDU ࢴ ϖϯWTTBJ FUD
දهํ๏Ͳ͏͢Δ͔ • ϓϩάϥϛϯάͷ߹ • ݴޠʹΑ੍͕ͬͯ͋Δ • Ϋϥε໊ઌ಄େจࣈ Number • ม໊ઌ಄খจࣈ
number • ఆશͯେจࣈ NUMBER • ϓϩδΣΫτͷίʔυن͕͋Δ • camelCase / PascalCase / snake_case • kDaysInAWeek / DAYS_IN_A_WEEK
දهํ๏Ͳ͏͢Δ͔ • ԿΒ͔ͷࠜڌʹΑΓܾ·͍ͬͯΔ͖ • ͍͍ͪͪม໊ͷ͚ํͱ͔Ͱٞͨ͘͠ͳ͍ • ίʔυنΛ࠷ॳʹ࡞Δࡍʹવٞɾݕ౼͋Δ • ݴޠίϛϡχςΟͷจԽͱͷ߹க •
ಡΈ͢͞ • ෳࡶ͗͢ͳ͍͔ • Ͳ͜·Ͱҙຯઆ໌Λߦ͏͔ (ল͍ͯྑ͍͔) • etc… • ৄ͘͠ؾʹͳΔਓʰϦʔμϒϧίʔυʱͷ֘෦ΛಡΈ ·͠ΐ͏
πʔϧԿ͕ྑ͍ͷ͔ • ༷ʑͳק༠͕͋Δ • ʻʮʲΤσΟλɾݴޠɾπʔϧͷ໊લ͕ೖΔʳ ͕ΦεεϝͩΑʙʯ • ͲΕͰྑ͍ͷͰͱΓ͋͑ͣͬͯΈΑ͏ • ଟɺޙʑʹͳͬͯ৭ʑ͔ͬͯ͘Δͱ࠶બͼ
͠νϟϯε͕౸དྷ͢Δ • બͿͱ͖ͷϙΠϯτͨͩ1ͭ • ͙ۙ͘͢ʹ࣭ग़དྷΔਓ͕͍Δ͔Ͳ͏͔
πʔϧԿ͕ྑ͍ͷ͔ • ༷ʑͳק༠͕͋Δ • ʻʮʲΤσΟλɾݴޠɾπʔϧͷ໊લ͕ೖΔʳ ͕ΦεεϝͩΑʙʯ • ͲΕͰྑ͍ͷͰͱΓ͋͑ͣͬͯΈΑ͏ • ଟɺޙʑʹͳͬͯ৭ʑ͔ͬͯ͘Δͱ࠶બͼ
͠νϟϯε͕౸དྷ͢Δ • બͿͱ͖ͷϙΠϯτͨͩ1ͭ • ͙ۙ͘͢ʹ࣭ग़དྷΔਓ͕͍Δ͔Ͳ͏͔
झຯͷൣғͰ ·ͣࢼ͠ʹ 50%0ΞϓϦ Λ࡞ͬͯΈ͍ͨ࣌
Ͳ͏ͬͯ࡞Δ͔ αʔόαΠυ3VCZ 1FSM +4 (P 8"'FYQSFTT LPB TBJMT %#.Z42- 1PTUHSF42-
.POHP%# +4ॻ͖ํ&4POMZ VTF&4 +4MJCSBSZK2VFSZ 3FBDU "OHVMBS+4 CVJMECBCFM CBCMFXJUIHVMQ XFCQBDL OPOF
Ͳ͏ͬͯ࡞Δ͔ αʔόαΠυ3VCZ 1FSM +4 (P 8"'FYQSFTT LPB TBJMT %#.Z42- 1PTUHSF42-
.POHP%# +4ॻ͖ํ&4POMZ VTF&4 +4MJCSBSZK2VFSZ 3FBDU "OHVMBS+4 CVJMECBCFM CBCMFXJUIHVMQ XFCQBDL OPOF
Ͳ͏ͬͯ࡞Δ͔ αʔόαΠυ3VCZ 1FSM +4 (P 8"'FYQSFTT LPB TBJMT %#.Z42- 1PTUHSF42-
.POHP%# +4ॻ͖ํ&4POMZ VTF&4 +4MJCSBSZK2VFSZ 3FBDU "OHVMBS+4 CVJMECBCFM CBCMFXJUIHVMQ XFCQBDL OPOF
Ͳ͏ͬͯ࡞Δ͔ αʔόαΠυ3VCZ 1FSM +4 (P 8"'FYQSFTT LPB TBJMT %#.Z42- 1PTUHSF42-
.POHP%# +4ॻ͖ํ&4POMZ VTF&4 +4MJCSBSZK2VFSZ 3FBDU "OHVMBS+4 CVJMECBCFM CBCMFXJUIHVMQ XFCQBDL OPOF
Ͳ͏ͬͯ࡞Δ͔ αʔόαΠυ3VCZ 1FSM +4 (P 8"'FYQSFTT LPB TBJMT %#.Z42- 1PTUHSF42-
.POHP%# +4ॻ͖ํ&4POMZ VTF&4 +4MJCSBSZK2VFSZ 3FBDU "OHVMBS+4 CVJMECBCFM CBCMFXJUIHVMQ XFCQBDL OPOF
Ͳ͏ͬͯ࡞Δ͔ αʔόαΠυ3VCZ 1FSM +4 (P 8"'FYQSFTT LPB TBJMT %#.Z42- 1PTUHSF42-
.POHP%# +4ॻ͖ํ&4POMZ VTF&4 +4MJCSBSZK2VFSZ 3FBDU "OHVMBS+4 CVJMECBCFM CBCMFXJUIHVMQ XFCQBDL OPOF
Ͳ͏ͬͯ࡞Δ͔ αʔόαΠυ3VCZ 1FSM +4 (P 8"'FYQSFTT LPB TBJMT %#.Z42- 1PTUHSF42-
.POHP%# +4ॻ͖ํ&4POMZ VTF&4 +4MJCSBSZK2VFSZ 3FBDU "OHVMBS+4 CVJMECBCFM CBCMFXJUIHVMQ XFCQBDL OPOF
Ͳ͏ͬͯ࡞Δ͔ αʔόαΠυ3VCZ 1FSM +4 (P 8"'FYQSFTT LPB TBJMT %#.Z42- 1PTUHSF42-
.POHP%# +4ॻ͖ํ&4POMZ VTF&4 +4MJCSBSZK2VFSZ 3FBDU "OHVMBS+4 CVJMECBCFM CBCMFXJUIHVMQ XFCQBDL OPOF
Ͳ͏ͬͯ࡞Δ͔ αʔόαΠυ3VCZ 1FSM +4 (P 8"'FYQSFTT LPB TBJMT %#.Z42- 1PTUHSF42-
.POHP%# +4ॻ͖ํ&4POMZ VTF&4 +4MJCSBSZK2VFSZ 3FBDU "OHVMBS+4 CVJMECBCFM CBCFMXJUIHVMQ XFCQBDL OPOF
http://d.hatena.ne.jp/tomoya/20160403/1459665374
http://b.hatena.ne.jp/entry/d.hatena.ne.jp/tomoya/20160403/1459665374 ίϝϯτ
+4Λॻ͘͏͑Ͱ φͰϠϯάʹͳͬͨ ͜͜࠷ۙͷมԽʹΑΔ ͷπέΛࢧ͏͜ͱ ʹର͢ΔΞϨίϨ
झຯͷൣғͰ ·ͣࢼ͠ʹ 50%0ΞϓϦ Λ࡞ͬͯΈ͍ͨ࣌ ͷΰʔϧͲ͜ʁ
ΰʔϧ(త)Ͳ͔͜ • ͱʹ͔͘ॳΊͯͳͷͰಈ͘Λ࡞Γ͍ͨ → पΓʹ૬ஊ/࣭Ͱ͖ΔͷΛબ͢Δͱྑ͍͔ • ৽ֶ͘͠ΜͩΞϧΰϦζϜΛͬͯΈ͍ͨ → ྫ͑ιʔτΞϧΰϦζϜΛࢼ͍ͨ͠ TODOͷฒͼସ͑෦ͰؤுΕͦ͏
(ී௨ఆٛࡁͷsort()Ͱॆ) • ৽͘͠ొͨ͠πʔϧϥΠϒϥϦΛࢼ͍ͨ͠ → ͡Ό͋ͦΕͰ
πʔϧݴޠͷબͩ ͚Ͱྑ͍50%0Ξ ϓϦʹͳΒͳ͍ɻ ͱʹ͔͘ྑ͍50%0 ΞϓϦΛ࡞ΔͱҒ͍ɻ
͠ΐ΅͍બʹΜͰ ͍͍͚ͯͳ͍ɻ ࣗͨͪͷखʹೃછΉ ࠷ߴͷΈ߹ΘͤͰ Ұ൪ྑ͍ͷՌΛ ੜΈग़ͨ͠ਓ͕࠷ڧ
l͓·͡ͳ͍z
%PZPVLOPX ͓·͡ͳ͍
࣭
࣍ͷ$ݴޠͰॻ͔Εͨ )FMMP8PSMEͷ ιʔείʔυʹ͓͚Δ l͓·͡ͳ͍zͲΕʁ
#include <stdio.h> int main(void) { printf("Hello, world!"); return 0; }
Wikipedia ຊޠ൛ Hello worldϓϩάϥϜͷҰཡ( https://ja.wikipedia.org/wiki/Hello_world%E3%83%97%E3%83%AD %E3%82%B0%E3%83%A9%E3%83%A0%E3%81%AE%E4%B8%80%E8%A6%A7#C ) 20164݄9 () 13:15 ࠷ऴߋ৽൛ΑΓ
None
ൣ ճ
#include <stdio.h> int main(void) { printf("Hello, world!"); return 0; }
͜ͷ෦͕͓·͡ͳ͍
#include <stdio.h> int main(void) { printf("Hello, world!"); return 0; }
͜ͷ෦͕͓·͡ͳ͍??
ຊʹͦΕͬͯ lॳ৺ऀzͷؾ࣋ͪʹ ͳͬͯ·͔͢ʁ
͓·͡ͳ͍ ˣ ೖॻͳͲ͕આ໌Λ ޙճ͠ʹ͢ΔͨΊͷ ϚδοΫϫʔυ
͓·͡ͳ͍ ˣ ೖॻͳͲ͕આ໌Λ ޙճ͠ʹ͢ΔͨΊͷ ϚδοΫϫʔυ
࣍ͷ$ݴޠͰॻ͔Εͨ )FMMP8PSMEͷ ιʔείʔυʹ͓͚Δ l͓·͡ͳ͍zͲΕʁ
࣍ͷ$ݴޠͰॻ͔Εͨ )FMMP8PSMEͷ ιʔείʔυʹ͓͚Δ ݱ࣌ͰԿނ͜͏ͳΔͷ͔ ͔Βͳ͍෦ͲΕʁ
ճ
#include <stdio.h> int main(void) { printf("Hello, world!"); return 0; }
#include <stdio.h> int main(void) { printf("Hello, world!"); return 0; }
#include <stdio.h> int main(void) { printf("Hello, world!"); return 0; }
#include <stdio.h> int main(void) { printf("Hello, world!"); return 0; }
#include <stdio.h> int main(void) { printf("Hello, world!"); return 0; }
#include <stdio.h> int main(void) { printf("Hello, world!"); return 0; }
lೖz
ݸਓతͳ ॴײ
None
Ͳͷॱ൪Ͱ Ͳ͏ѻ͏͔
࣭
ೖ ॻ ಡΜͩ͜ͱ ͋Δʁ
None
͚࣍ͩ ோΊΔ
.%/ +BWB4DSJQUΨΠυ
None
Wikipedia ຊޠ൛ Hello worldϓϩάϥϜͷҰཡ ( https://ja.wikipedia.org/wiki/Hello_world %E3%83%97%E3%83%AD %E3%82%B0%E3%83%A9%E3%83%A0%E3%81%A E%E4%B8%80%E8%A6%A7#C )
20164݄9 () 13:15 ࠷ऴߋ৽൛ΑΓ
·ͣconsole.log(“ͳΜͪΌΒ”) Ͱग़ྗ
ͪͳΈʹ”ͳΜͪΌΒ”<จࣈྻ>
HTMLϖʔδͰར༻͢Δ߹ <script>λάΛ͏
documentHTMLจॻΛදݱͨ͠DOM
document.writeͰͦ͜ʹॻ͖ࠐΉ
ͲͷཁૉΛ͍ͭ ͲͷΑ͏ʹઆ໌͢Δ͔ ΛΠϝʔδ͓ͯ͘͠
http://bokete.jp/boke/27977778
#include <stdio.h> int main(void) { printf("Hello, world!"); return 0; }
None
ؤுΖ͏ʂ
·ͱΊ
·ͱΊ • ͠ΐ΅͍Λٞ͗͢͠ͳ͍Α͏ʹ͠Α͏ • ϓϩάϥϛϯάΛతʹ͗͢͠ͳ͍ • Կ͕ຊ࣭తͳͰ͖ٞ͢ͳͷ͔ • ೖ࣌ʮ͓·͡ͳ͍ʯ •
Կނʮ͓·͡ͳ͍ʯͳͷ͔ • Ͳ͏͢Δͱʮ͓·͡ͳ͍ʯͰͳ͘ͳΔͷ͔ • ͓·͡ͳ͍Λཧղ͢ΔͨΊʹͲ͏͍͏४උ͕ग़དྷΔͷ͔
্ճੜ ৽ೖੜ
ΈΜͳͰ,.$Λ ࠷ڧʹ͠Α͏