Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Perl Quiz
Search
Shoichi Kaji
May 21, 2021
Programming
0
140
Perl Quiz
Gotanda.pm 2021/05/21
Shoichi Kaji
May 21, 2021
Tweet
Share
More Decks by Shoichi Kaji
See All by Shoichi Kaji
宿泊予約サイトにおける検索と料金計算の両立
skaji
2
3.8k
昔のGo, 今のGo ~比較, ソート編~
skaji
0
220
cpm at PerlCon 2019
skaji
0
110
Perl5 Package Manager
skaji
0
700
Internal of cpm
skaji
0
610
How to execute external programs in Perl
skaji
3
640
Writing Perl with w0rp/ale
skaji
0
2.3k
nginx unit
skaji
0
48
Perl6 ecosystem
skaji
1
1.4k
Other Decks in Programming
See All in Programming
Browser and UI #2 HTML/ARIA
ken7253
2
180
Cloudflare Workersで進めるリモートMCP活用
syumai
5
540
In geheimer Mission: AI Agents entwickeln
joergneumann
0
110
OpenTelemetry + LLM = OpenLLMetry!?
yunosukey
1
110
Cursor/Devin全社導入の理想と現実
saitoryc
29
22k
Ruby で作る RISC-V CPU エミュレーター / RISC-V CPU emulator made with Ruby
hayaokimura
5
1.1k
2025-04-25 GitHub Copilot Agent ライブデモ(スクリプト)
goataka
0
110
iOSアプリで測る!名古屋駅までの 方向と距離
ryunakayama
0
160
ビカム・ア・コパイロット
ymd65536
1
130
M5UnitUnified 最新動向 2025/05
gob
0
140
note の Elasticsearch 更新系を支える技術
tchov
9
3.6k
設計の本質:コード、システム、そして組織へ / The Essence of Design: To Code, Systems, and Organizations
nrslib
10
3.8k
Featured
See All Featured
What’s in a name? Adding method to the madness
productmarketing
PRO
22
3.4k
Faster Mobile Websites
deanohume
307
31k
10 Git Anti Patterns You Should be Aware of
lemiorhan
PRO
656
60k
Java REST API Framework Comparison - PWX 2021
mraible
31
8.6k
Distributed Sagas: A Protocol for Coordinating Microservices
caitiem20
331
21k
Measuring & Analyzing Core Web Vitals
bluesmoon
7
420
Gamification - CAS2011
davidbonilla
81
5.3k
Designing Experiences People Love
moore
142
24k
Bootstrapping a Software Product
garrettdimon
PRO
307
110k
Site-Speed That Sticks
csswizardry
6
540
Let's Do A Bunch of Simple Stuff to Make Websites Faster
chriscoyier
507
140k
Creating an realtime collaboration tool: Agile Flush - .NET Oxford
marcduiker
30
2k
Transcript
Perl Quiz😆 Shoichi Kaji
Q1. ࣍ͷจষਖ਼͍͔͠? Time::Localύοέʔδʹ͓͍ͯ timelocalؔͰͳ͘ timelocal_modernؔΛ͏ ͜ͱ͕ਪ͞Ε͍ͯΔɻ
A1. ਖ਼͘͠ͳ͍
• timelocal جຊతʹ localtime ͷ"ٯ"Λఏڙ͢Δؔɻ Y,m,d,H,M,SΛड͚औΓunixtimeΛฦ͢ɻ • ͕ɺ"DWIM"ͳڍಈΛ͢Δ্ؔɺ 2020Λڥʹ݁Ռ͕มΘΔՄೳੑ͕͋Δ😨 •
͜ΕΛղܾ͘͢ɺܾఆతͳ݁ՌΛฦ͢ timelocal_modern͕༻ҙ͞Εͨɻ • ͕ɺͦΕগʑ͍·͍ͪͩͬͨͷͰɺݱࡏͰ timelocal_posixΛ͏͜ͱ͕ਪ͞Ε͍ͯΔɻ ͜Εlocaltimeͷਅͷ"ٯ"Λఏڙ͢Δɻ
Q2. ࣍ͷ ʹೖΔͷԿ͔? ֎෦ίϚϯυͷඪ४ग़ྗΛ ಘΔؔͱͯ͠ qx//, ``, ͕͋Δɻ
A2. readpipe
• rjbs͞ΜͷϒϩάಡΜͰ͍ͯɺ readpipeͱ͍͏͕ؔ͋Δ͜ͱΛ࠷ۙͬͨɻ • ಉ͡ಇ͖Λ͢ΔΈࠐΈ͕ؔ 3ͭ͋Δඞཁ...
Q3. PerlͰϋογϡϦϑΝϨϯεͱ ϒϩοΫʹಉ͡ه߸ {} Λ༻͍͍ͯΔɻ ͳΜΒ͔ͷཧ༝ͰϋογϡϦϑΝϨϯεΛ ໌͍ࣔͨ͠ͱ͖ +{} ͕ଟ༻͞ΕΔɻ ͰٯʹϒϩοΫΛ໌͍ࣔͨ͠ͱ͖
ͳΜͱॻ͘ͱΑ͍͔ʁ
A3. {; }
• metacpanΛோΊ͍ͯͨΒɺ App::UniϞδϡʔϧͰΘΕ͍ͯͯͬͨɻ • ࣮ࡍͷͱ͜Ζɺ+{}, {; } ຊʹඞཁͳॴগ ͳ͍ͱࢥ͏😇
Q4. Perl v5.16Ҏ্ʹ͓͍ͯ ࣮ߦϢʔβͷhomeσΟϨΫτϦ Λऔಘ͢Δ؆ศͳํ๏ʁ
A4. my $home = (<~>)[0];
• ΫϩεϓϥοτϑΥʔϜΛҙ্ࣝͨ͠Ͱ HomeσΟϨΫτϦΛऔಘ͢Δͷ݁ߏେมɻ • ͪΌΜͱΔͳΒFile::HomeDirϞδϡʔϧΛ͏ͷ͕ ΑΖ͍͠ɻ • "͋Δఔ"ͰेͳΒɺάϩϒ(glob,<>)Ͱ "~" Λ
ղܾͤͯ͞औಘ͢Δͷ͕ϥΫɻ • ͳ͓ɺPerl5.16ະຬҙ͍ࣝͨ͠ͳΒ File::HomeDir::TinyΛ͏ͱΑΖ͍͠ɻ
Q5. Perl͋ΔόʔδϣϯΑΓ @INCͷॱ൪͕มΘ͍ͬͯΔɻ มΘͬͨͷ࣍ͷ͏ͪͲΕ͔? (A) v5.10͔Β (B) v5.12͔Β (C) v5.14͔Β
A5. (B) v5.12͔Β
• @INCϞδϡʔϧαʔνύε͕ೖ͍ͬͯΔมɻ • @INCجຊతʹ * 1൪: CPANϞδϡʔϧೖΔsitelib * 2൪: coreϞδϡʔϧ͕ೖΔcorelib
ʹΑͬͯߏ͞ΕΔɻ • ͕ɺ5.10Ҏલcorelib, sitelibͷॱʹͳ͍ͬͯͨɻ • ͦͷ্ؔɺ5.10ҎલͰdual lifeϞδϡʔϧΛΠϯετʔϧ͢Δ ͱɺcorelibʹ্ॻ͖͞ΕΔɻ • CartonͷޙܧCarmel͕v5.12Λཁٻ͍ͯ͠Δͷ͜Ε͕ཁҼɻ
Q6. ҎԼͷίʔυΛWindowsͰ࣮ߦ͢Δͱ ʮHello, World!ʯ ͱදࣔ͞ΕΔɺ͞Εͳ͍?
A6. දࣔ͞Εͳ͍
• Windowsʹ͓͍ͯ ͨͱ͑ system LIST ܗࣜͰ͋ͬͯ ಛघจࣈΛΫΦʔτ͠ͳ͍ͱ͍͚ͳ͍Մೳੑ͕͋ Δɻ • ઌͷྫͩͱಛʹʮ"ʯ͕ͱͳͬͯ
ʮHello World!ʯͱදࣔ͞Εͳ͍ɻ • Windows༻ͷΫΦʔτʹɺWin32::ShellQuote ϞδϡʔϧΛ͏ͱΑ͍ɻ
͓ΘΓ