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Node.js / Deno 徹底討論の時のスライド
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Yosuke Furukawa
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March 31, 2022
Programming
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Node.js / Deno 徹底討論の時のスライド
2022/3/17 Node学園38時限目のスライドです。
Yosuke Furukawa
PRO
March 31, 2022
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Transcript
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͜ͷରஊͷૂ͍ • ʮΒͳ͍͠ɺͲͬͪΛબΜͩΒྑ͍͔Θ͔Βͳ͍ʯ ͱ͍͏ঢ়گΛݮΒ͢ɻ ্ͬͨͰ/PEFKTΛ͏ ্ͬͨͰٕज़બͱͯ͠ਖ਼ ͍͠ํΛέʔεʹ߹Θͤͯऔ ࣺબͰ͖Δ Βͳ͍͠ɺͲͪΒΛબΜͩ Βྑ͍͔Θ͔Βͳ͍
্ͬͨͰ%FOPΛ͏
Node.js ͷྑ͍ͱ͜Ζ deno ͷྑ͍ͱ͜Ζ
Α͍ͱ͜Ζ • Node.js: αϙʔτମ੍ɺಛʹLTS͕͋Γɺ2ؒαϙʔτ͞ΕΔ • deno: πʔϧ͕ຊମʹϏϧτΠϯͰؚ·Ε͍ͯͯɺೖΕͨ͋ͱ͍͖ͳ Γ։ൃ͕ਐΊΒΕΔ • ಛʹܕඇৗʹڧ͍
Node.js ͷѱ͍ͱ͜Ζ deno ͷѱ͍ͱ͜Ζ
ΘΔ͍ͱ͜Ζ • deno: αϙʔτମ੍͕ऑ͍ • deno: ࠷৽ʹ্͛ͯ͘Εͱ͍͏ݴ͍ํʹͳΔ • ͪΐͬͱલͷϚΠφʔόʔδϣϯΛαϙʔτͯ͠΄͍͠ͱ͍͏ʹͳΓ͕ͪ •
࠷৽ʹ͍ͭͯདྷΕΔମྗ͕ඞཁʹͳΔ • Node.js: ܕͷαϙʔτ • Node.js: ϞδϡʔϧγεςϜ͕ΰλΰλ • CJS / ESM ͷରԠʹ͍ͭͯ
Node.js ͷվળ deno ͷվળ
վળ • Node.js => Deno : Deno ͬͯ npm ϞδϡʔϧΛαϙʔτ͢Δͬͯݴ͚ͬͯͨͲɺΰλΰλ
Ͳ͏͢Δͷ͔ʁ • Deno: ΰλΰλ͝ͱड͚ೖΕͯΔ • Node.js: ͦͨ͠ΒͲͬͪΰλΰλʹͳΔͷͰɾɾɾʁ • import fs from "node:fs"; ͜Μͳײ͡ʁ • import fs from "https://deno.land/std/fs/mod.ts"; • Deno: ίϛϡχςΟଆ npm ϞδϡʔϧͷޓੑʹରҙݟͩͬͨɻͰϦʔμʔޓ ੑΛਪਐͨ͠ɻͻͷ͞Θ͞Μͷҙݟ͖ͬΓ۠ผ͢ΔϥΠϯ͕͋Εྑ͍ͱࢥ͍ͬͯΔ
Web Standard ͷऔΓΈ ํ
Web Standard ͷऔΓΈํ • Deno: Web Standard ΛੵۃతʹऔΓೖΕΑ͏ͱ͢Δɻ • ੵۃతʹऔΓೖΕա͗ͳͷͰʁ
• ·ͩWICGͷϨϕϧͰऔΓೖΕΔͷ͍ͩͿૣ͗͢Δؾ͕͢Δ •
Tooling ʹ͍ͭͯ
tooling • deno: deno task ͱ͍͏ͷ͕ೖͬͨ (npm run Έ͍ͨͳͭ) •
deno.json ʹίϚϯυΛॻ͘ͱ࣮ߦ͞ΕΔ
Permission ʹ͍ͭͯ
Permission ʹ͍ͭͯ • mizchi: ࠷ॳؤு͚ͬͯͭͯΔɺͰ import ͨ͠ઌͰଞͷϝϯόʔ͔Β permission ͕ଞʹඞཁʹͳͬͯ͘Δɻ •
ѱҙͷ͋Δϝϯόʔ͕ͦΕΛݴ͖ͬͯͨΒ࣮ࡍ͙ͷ͍͠ • kt3k: mizchi ͞ΜʢίʔυΦʔφʔʣ͕ඞཁͱࢥͬͨ permission ͚ͩ༩͢Εྑ͍ͷͰɺͦΕΛڧݻʹकΔ͖ • mizchi: ͦΕΘ͔Δ͕ɺαϓϥΠνΣʔϯΞλοΫΛकΔʹ࡞Δଆͱ͏ଆͷ྆ํͰͷέΞ͕ඞཁͳͷͰͳ͍͔ͱࢥ͍ͬͯ Δ • ݖݶ͕ංେԽ͢ΔͷΤίγεςϜͷதͰΑ͋͘Δͷɺ Android ͱ͔ΞϓϦΛΠϯετʔϧ͢Δͱ͖ʹશͯͷݖݶΛཁ ٻ͖ͯͨ͠Γ͢Δ • martin: Node.js policy ػೳ͕͋ΔɻηΩϡϦςΟίϛϡχςΟͷͰ͋ͬͯҰͭͷςʔϚͰ͋Δ • policy.json ͰΞϐʔϧͰ͖ΔͷͰ͋ΕͦΕΛίϯτϦϏϡʔτͯ͠ଞͷਓʹͪΌΜͱηΩϡϦςΟͷྀΛΞϐʔϧͨ͠ ͍ • ͨͩ೦ͳ͕Βࠓ policy ͷػೳͦ͜·Ͱͳ͍ͬͯͳ͍ɻ
Node.js ͷਪ͠৽ػೳ deno ͷਪ͠৽ػೳ
ਪ͠ػೳ • ݹ: Single Executable Application • Martin: webcrypto ͕࣮͞ΕͨΑʂ
• kt3k: Deno task ͕࣮͞ΕͨΑʂ • mizchi: deno fetch ͕ϩʔΧϧʹରͯ͠Ͱ͖Δ wasmpack Λͦͷ·· ಡΈࠐΊͨ
Governance ʹ͍ͭͯ
Governance ʹ͍ͭͯ • deno: BDFL ϞσϧɺϦʔμʔ͕ܾఆΛ͢Δ • node.js: Open Governance
ϞσϧɺϦʔμʔෆࡏɺεςΞϦϯάίϛοςΟʔ͕ ܾΊΔɻ • martin: deno inc Ͱɺձࣾʹͳ͍ͬͯΔɺϦʔμʔ͕ܾΊΔ͚ͩͰͳ͓ͯۚ͘ ʹΑͬͯࠨӈ͞ΕΔ • kt3k: ͦΕ͔ͨ͠ʹͦ͏ɻϢʔβʔΛ্͛ΔΑ͏ʹͯ͠ɺ͓ۚΛՔ͙ඞཁ͕͋Δ • node ͷϞδϡʔϧΛαϙʔτ͢ΔͷϢʔβʔΛ্͛Δඞཁ͕͋ΔͨΊ
Node.js ͷࠓޙ deno ͷࠓޙ
ࠓޙ • mizchi: ͓ޓ͍Ճ͢Δػೳ͕ࣅ͍ͯΔɺӨڹΛड͚͍͋ͬͯΔɺ͖ͳํΛબΑ͍ͱ͍͏ະདྷʹͳΔɻ • ઈରަΘΒͳ͍ϥΠϯΛMicrosoft͕ʹ͗ͬͯΔɻ • ֦ுࢠͷলུՄ൱ϥΠϯ • kt3k:
Node.jsޓ͕Ͱ͖ΔΑ͏ʹͳΓɺϢʔβʔ͕denoʹ૿͑Δɺདྷͬͱ፰߅͢Δɻ • martin: Node.js ͷະདྷ Web Standard ͷػೳ͕ͬͱ૿͍͑ͯ͘ɻfetch ͷଞʹ Event Emitter ͱ͔৭ʑ૿ ͍͑ͯ͘ɻͬͱϒϥβϓϥοτϑΥʔϜؒͷޓੑ͕ߴ͘ͳΔͣɻ • test runner ͕ Node.js ʹೖΔ • deno ͷ࡞ઓ => deno inc ͕ microsoft ʹങΘΕΔ • furukawa: