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LTͷෑډΛԼ͛Δ Omotesando.rb #93 2024/01/11 1
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ࣗݾհ • ໊લ: ਖ਼ಙ (aka: ਆ) • GitHub: @sinsoku (ը૾ӈ্) • Twitter: @sinsoku_listy (ը૾ӈԼ) • ͖ͳݴޠ: Rust ! , Ruby " • Railsྺ: 8͘Β͍ 2
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એ: ໌1/12(ۚ)ʹ։࠵ ձ גࣜձࣾϚωʔϑΥϫʔυ ͞Μʹ͓आΓ͠ɺRBSܕΛ৮ ΔձΛ͠·͢ɻ 3
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͢͜ͱ • ! LTͷෑډ͕ߴ͍ʁ • ⭐ LTͷϝϦοτ • # εϥΠυͷ࡞ΓํͳͲ • $ ͓·͚: Rubyͷ • Omotesando.rb ͳͷͰ 4
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! LTͷෑډ͕ߴ͍ʁ • ొஃͯ͢͠ωλ͕ແ͍ • ਓલͰ͢ͷ͕ۤख • ܦݧ͕ແ͍ͷͰෆ҆ 5
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͢ωλ Omotesando.rb ຖ݄։࠵ͯ͠ΔͷͰɺRubyؔ࿈Ͱ৽֮͑ͨ͘͠ Կ͔Λ͘͢Β͍ͷؾ࣋ͪͰྑ͍ɻ • Rubyͷศརϝιουɺػೳͷհ • ͋·ΓΒΕ͍ͯͳ͍ڍಈͷհ • ʮ͜Ε͕όάͷݪҼͰͨ͠ʯͳͲ1 1 ⚠ ۀͷ۩ମྫΛ͠ա͗ͳ͍Α͏ʹҙ 6
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ਓલͰ͢ͷ͕ۤख / ܦݧ͕ແ͍ͷͰෆ҆ 7
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ͦΕͳ 8
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͢ͷ͕ۤख / ෆ҆ ొஃܦݧ͕૿͑Δͱɺগ͠׳ΕΔɻ ͨͩɺਓ͕૿͑ΔͱࠓͰۓு͢Δɻ 9
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LTʹର͢Δߟ͑ํ • ⏳ Ͱ͖Δ͚ͩ 5 ͰऴΘΒͤΔ • LT͕໘ന͘ͳͯ͘5ͳΒେৎ • " ୭͔ͷʹཱͭ 10
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࣭ 1. Omotesando.rb ॳࢀՃͷํ 2. Ruby/Railsͷܦݧ͕3ະຬͷํ 11
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⭐ LTͷϝϦοτ • ! ొஃͷޙʹใ͕ू·Δ • " ొஃͷ࿅शʹͳΔ • # كʹొஃґཔΛड͚Δ 12
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! εϥΠυ࡞ιϑτ • Google Slides • Deckset for Mac 13
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Google Slides • ແྉ • Windows, Mac Ͱར༻Մ • ៉ྷͳσβΠϯ͕࡞ΕΔ • จࣈɾը૾Λࣗ༝ʹஔͰ͖Δ ҎલʹΑ͍ͬͯͨ͘ɻձࣾͷςʔϚΛ͏ͱ͖ͬͪ͜ɻ 14
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Desckset for Mac • ༗ྉʢ$35/one-timeʣ • ϚʔΫμϯه๏Ͱ࡞Մೳ • GitHubͰཧͰ͖Δ • จࣈɾը૾ͷஔʹ੍ݶ͕͋Δ ࠷ۙͬͪ͜Λ͍ͬͯΔɻ࣌ؒͰεϥΠυ͕࡞Εͯศརɻ 15
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! ը૾Λ͏ • ! จࣈ͚ͩͩͱ୯ௐʹͳΔ • ✨ ҹʹΔ • # ্ख͘͏ͱ໘ന͍ 16
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ΞϯΨʔϚωδϝϯτͷษڧͰಡΜͩຊ • ΞϯΨʔϚωδϝϯτೖ • ଞऀͱಇ͘ / ʮΘ͔Γ͋͑ ͳ͞ʯ͔Β࢝ΊΔ৫ • ࣗͷখ͞ͳʮശʯ͔Β ग़͢Δํ๏ • ը૾ 17
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⚠ ஶ࡞ݖͷѻ͍ • εϥΠυͷར༻άϨʔ2 • ΦϯϥΠϯެ։ආ͚ͨํ͕ྑ͍ • SpeakerDeck ʹ্͛Δલʹফ͢ • ΧϯϑΝϨϯεͰར༻Λආ͚ͨํ͕ྑ͍ 2 ৄ͘͠ͳ͍ͷͰࣗ৴ͳ͍ 18
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! αʔόαΠυΤϯδχΞ ͜ΕαόͰ͢ ! 19
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! map, flat_map, filter_map ͷհ map p [1, 2, 3].map { |n| n * 3 } #=> [3, 6, 9] 20
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! map ͱ flat_map ͷҧ͍ map [[1,2], [3,4]].map { |i| i.map { |j| j*2 } } #=> [[2, 4], [6, 8]] flat_map [[1,2], [3,4]].flat_map { |i| i.map { |j| j*2 } } #=> [2, 4, 6, 8] 21
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! map ͱ filter_map ͷҧ͍ map (1..10).map { |i| i * 2 if i.even? } #=> [nil, 4, nil, 8, nil, 12, nil, 16, nil, 20] filter_map (1..10).filter_map { |i| i * 2 if i.even? } #=> [4, 8, 12, 16, 20] 22
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! ͥͻ࣍ճొஃ͠·͠ΐ͏ 23