2019年のコミュニティ活動報告 / Community Activity in 2019

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Community Activity 2019 ؔ੢ίϛϡχςΟ2019ৼΓฦΓʴ๨೥εΠʔπύʔςΟʔ Masashi Hirano(@shisama)

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ฏ໺ ণ࢜ / Masashi Hirano @shisama_ Node.js Core Collaborator ؔ੢NodeֶԂ & W3K Organizer

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ࠓ೥ӡӦʹؔΘͬͨίϛϡχςΟ׆ಈ • ؔ੢NodeֶԂ Organizer • W3K (World Wide Web Kansai) Organizer • Frontend Conference 2019 Staff • JSConf JP Staff

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ؔ੢NodeֶԂ

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ؔ੢NodeֶԂ • Node.js΍JavaScriptͷษڧձ (since 2018) • 2019೥։࠵ճ਺: 4ճ (2݄ɺ5݄ɺ7݄ɺ10݄) • େࡕͱژ౎Ͱ։࠵ • Node.jsͷϦϦʔεʹ߹Θͤͯ4݄຤લޙͱ10݄຤લޙʹ։࠵ • ελοϑɺձ৔ఏڙɺొஃऀ͸ਵ࣌ืू͍ͯ͠·͢ʂ

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͔ͤͬ͘ͳͷͰগٕ͠ज़ͷ࿩Λ

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2019೥ JavaScriptͷ࢓༷ʹೖͬͨػೳ (ES2019) • Optional catch binding • JSON superset • Symbol.prototype.description • Function.prototype.toString revision • Object.fromEntries • Well-formed JSON.stringify • String.prototype. {trimStart,trimEnd} • Array.prototype.{ﬂat,ﬂatMap}

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དྷ೥ɺ࢓༷ʹೖΔ͜ͱ͕ܾ·͍ͬͯΔػೳ (ES2020) • String.prototype.matchAll • import() • BigInt • Promise.allSettled • globalThis • for-in mechanics • Optional Chaining • Nullish coalescing Operator

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ৄ͘͠͸ϒϩάΛݟ͍ͯͩ͘͞ʂʂ https://shisama.hatenablog.com/entry/2019/12/01/080000

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ECMAScript • JavaScript͸ECMAScriptͷ࢓༷ʹ४ڌ • TC39ͱ͍͏ஂମ͕؅ཧ͍ͯ͠Δ • ʮ͖ͨͨ୆ʯˠʮఏҊʯˠʮԼॻ͖ʯˠʮީิʯˠʮ׬ྃʯͷ֤εςʔ δϯάͰͷٞ࿦΍৚݅ΛΫϦΞͨ͠΋ͷ͕ECMAScriptͷ࢓༷ʹೖΔ • ECMAScript࢓༷ʹೖͬͨ೥ͷػೳΛ·ͱΊͯES2019ͳͲͱݺΜͰ͍Δ

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JavaScriptΤϯδϯ • ϒϥ΢β͝ͱʹJavaScriptΤϯδϯ͸ҧ͏ • ϒϥ΢β͝ͱʹ࢖͑Δػೳɺ࢖͑ͳ͍ػೳ͕ଘࡏ͢Δ • ECMAScriptͷ࢓༷ʹೖ͔ͬͨΒͱ͍ͬͯશͯͷϞμϯϒϥ΢β Ͱશػೳ࢖͑ΔΘ͚Ͱ͸ͳ͍ • caniuse.com΍MDNͰػೳ͕࢖͑Δ͔Ͳ͏͔Λ֬ೝͰ͖Δ

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caniuse.com

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࠷৽ͷ࢓༷΍ఏҊ͸TC39ΛwatchͤΑ https://github.com/tc39

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https://github.com/nodejs/Release 2019/10/21 2020/10 2022/4 2019/10/22 2020/6

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Node.js 2019 • v12͕LTS(Long Term Support)  4/23ϦϦʔε  10/21 LTS൛ϦϦʔε • v13͕࠷৽ͷόʔδϣϯ  10/22 ϦϦʔε

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Node.js v12 • V8(JavaScriptΤϯδϯ)͕v7.4ʹͳͬͨ  ࢖͑ΔJavaScriptͷػೳ͕૿͑ͨ  async/awaitͷύϑΥʔϚϯε޲্ etc • TLS 1.3Λαϙʔτ • etc

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Node.js v13 • V8(JavaScriptΤϯδϯ)͕v7.8ʹͳͬͨ  ύϑΥʔϚϯε޲্  WebAssemblyͷαϙʔτڧԽ etc • ES Modules( import / export )͕ϑϥάແ͠Ͱ࢖͑ΔΑ͏ʹͳͬͨ • ࠃࡍԽ(i18n)ͷػೳ͕ଟݴޠαϙʔτ  ͜Ε·Ͱ͸ӳޠ͔͠αϙʔτ͍ͯ͠ͳ͍ػೳ͕͋ͬͨ • etc

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ৄ͘͠͸ϒϩάΛݟ͍ͯͩ͘͞ʂʂ https://shisama.hatenablog.com/entry/2019/04/24/103000

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ৄ͘͠͸ϒϩάΛݟ͍ͯͩ͘͞ʂʂ https://shisama.hatenablog.com/entry/2019/10/23/190842

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W3K #w3kansai

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ςʔϚ͸Web • W3C΍WHATWGͷಈ޲ • HTML • CSS • ϒϥ΢β • ύϑΥʔϚϯε • ηΩϡϦςΟ • ϓϩτίϧ • ΞΫηγϏϦςΟ • σβΠϯ • ޿ࠂ ϑϩϯτΤϯυΤϯδχΞɺ αʔόʔαΠυΤϯδχΞɺ ΠϯϑϥΤϯδχΞɺ σβΠφʔɺ SRE…ͳͲ  ৬छ͸໰͍·ͤΜʂ • XR (AR/VR) • Media(Audio/Video) • SRE • Web Components • Auth • PWA • AMP • Web Bundle • i18n • etc…

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Slack https://bit.ly/2KKovzw ࣭໰ɺࡶஊͳͲʹ͓࢖͍͍ͩ͘͞

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https://2019.kfug.jp

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https://2019.kfug.jp

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https://2019.kfug.jp

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https://speakerdeck.com/masashi/number-frontkansai-2019

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https://drive.google.com/ﬁle/d/128cOPOeZLRkPFiAoZMSRVBRh_62JDzBm/view ͨ͘͞Μͷํʹ͓ӽ͍͖ͨͩ͠·ͨ͠

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https://twitter.com/frontkansai/status/1191327390061842438

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https://jsconf.jp

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JSConf • ੈքதͰߦΘΕ͍ͯΔJavaScriptͷΧϯϑΝϨϯε • asiaɺkoreaɺchinaͳͲΞδΞʹ΋͕͋ͬͨ೔ຊʹ͸ແ͔ͬͨ • 10೥લͷJSConf EUͰॳΊͯNode.js͕ൃද͞ΕΔͳͲ JavaScriptք۾Ͱ͸௒༗໊ͳΧϯϑΝϨϯε

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ࡢ೥ͷ౦ژNodeֶԂࡇ(nodefest)Ͱ OPEFGFTU͸ࠓ೥ͰऴΘΓɻ དྷ೥͔Β͸+4$POGΛ͢Δ https://speakerdeck.com/yosuke_furukawa/nodefest-2018-and-jsconf-in-japan

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JSConf JP • Japan Node.js Associationओ࠵ • yosuke_furukawaΛத৺ʹ༗ࢤͷελοϑͰ։࠵ • ୗࣇαʔϏεͳͲ৽͍͠औΓ૊Έʹ΋௅ઓ • ࠃ಺֎͔ΒొஃऀɾࢀՃऀ͕དྷ৔  Non Native Japanese͕3~4ׂ

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ࠃ಺֎͔ΒొஃɾࢀՃ https://jsconf.jp

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౦ژɾେࡕͳͲ͔Βελοϑू݁ https://jsconf.jp ͜͜ʹ͸ࡌ͍ͬͯͳ͍ଟ͘ͷਓʹ ڠྗ͍͖ͯͨͩ͠·ͨ͠

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ձ৔͸ֶߍͷ੻஍ 3331 Arts Chiyoda ମҭؗ (Room A) ԰্ (Room C)

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େม͚ͩͬͨͲ࠷ߴͩͬͨʂʂ

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དྷ೥΋։࠵͠·͢ʂ https://speakerdeck.com/yosuke_furukawa/jsconf-japan-closing-talk

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࠷ޙʹ

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࠷ޙʹ • ίϛϡχςΟɾOSS׆ಈΛ௨ͯ͡ࠓ೥΋ଟ͘ͷਓͱग़ձ͑ͨ • ؔ੢ͷίϛϡχςΟ͸૿͖͍͑ͯͯΔ(ͱײ͡Δ) • ΋ͬͱؔ੢ͷίϛϡχςΟΛ੝Γ্͍͛ͨʂʂ