フロントエンドの現在地とこれから

Slide 1

Slide 1 text

ϑϩϯτΤϯυͷݱࡏͱ͜Ε͔Β @koba04 - 2024/10/05 YAPC::Hakodate 2024

Slide 2

Slide 2 text

@koba04 • Frontend Engineer at Mercari • Frontend Advisor at SmartHR • OSS Contributor / Maintainer • ࢲͱ Perl • Amon2, Teng ͱ͔Ͱ Web ΞϓϦͭ ͘Δͷ͕޷͖Ͱͨ͠ • *::Tiny, *::Simple ܥͷ CPAN Module ͕޷͖ • or die “Error!” ͬͯॻ͘ͷ͕޷͖ Toru Kobayashi

Slide 3

Slide 3 text

͜ͷτʔΫͷΰʔϧ 🏁 “ϑϩϯτΤϯυͷࠓͱ͜Ε͔ΒΛ ఺Ͱ͸ͳ͘ઢͰଊ͑ΒΕΔ”

Slide 4

Slide 4 text

Agenda • όϯυϥ 🙏 • ΤίγεςϜͷมԽ 🙏 • React ͷ࣍ 🙏 • αʔόʔͱϑϩϯτΤϯυ ✅ • ϑϩϯτΤϯυʁ ✅ 🙏: ͕࣌ؒ଍Γͳ͍ͷͰμΠδΣετͰ… 🙇

Slide 5

Slide 5 text

⚠ ͜ͷτʔΫͰ͸ React Λ۩ମྫͱͯ͠ॻ͍͍ͯ·͕͢ɺ ɹ ࠜఈʹ͋Δߟ͑ํ͸ React ʹґଘ͠ͳ͍ ɹ ΋ͷͰ͋Δͱߟ͍͑ͯ·͢ɻ

Slide 6

Slide 6 text

όϯυϥ

Slide 7

Slide 7 text

No content

Slide 8

Slide 8 text

No content

Slide 9

Slide 9 text

No content

Slide 10

Slide 10 text

No content

Slide 11

Slide 11 text

ΤίγεςϜͷมԽ

Slide 12

Slide 12 text

No content

Slide 13

Slide 13 text

React ͷ࣍

Slide 14

Slide 14 text

https://2023.stateo f js.com/en-US/libraries/front-end-frameworks/

Slide 15

Slide 15 text

No content

Slide 16

Slide 16 text

αʔόʔͱϑϩϯτΤϯυ

Slide 17

Slide 17 text

No content

Slide 18

Slide 18 text

https://2023.stateo f js.com/en-US/usage/#js_app_patterns

Slide 19

Slide 19 text

Data Fetching is hard https://github.com/vercel/swr/blob/main/src/core/use-swr.ts#L442-L463 How to handle... • Cache • Revalidate • Race Condition • Dedupe Requests

Slide 20

Slide 20 text

No content

Slide 21

Slide 21 text

No content

Slide 22

Slide 22 text

No content

Slide 23

Slide 23 text

No content

Slide 24

Slide 24 text

No content

Slide 25

Slide 25 text

No content

Slide 26

Slide 26 text

No content

Slide 27

Slide 27 text

No content

Slide 28

Slide 28 text

No content

Slide 29

Slide 29 text

No content

Slide 30

Slide 30 text

ϑϩϯτΤϯυʁ

Slide 31

Slide 31 text

ϑϩϯτΤϯυʁ • αʔόʔɺϒϥ΢βɺCDNɺ৔ॴ͸ؔ܎ͳ͘ϢʔβʔମݧΛى఺ʹऔΓ૊Ή΋ͷશͯ • ϒϥ΢βɺαʔόʔɺϏϧυɺશͯͷ؀ڥΛϑϧʹ׆༻ • e.g. Partial Pre-rendering (PPR, Next.js) • ͔ͭͯ Web ͱݺ͹Ε͍ͯͨ΋ͷʁ • UI Λॻ͘ݴޠͱͯ͠ͷ JavaScript • มԽΛආ͚ΔͷͰ͸ͳ͘ɺEncourage ͢ΔΞʔΩςΫνϟ • ந৅ԽͷϨΠϠʔʢ໨తʣΛҙࣝ͢Δ • React ͷ͕࣍དྷͨΒ…ʁ • τϨϯυʹགྷΒ͞Εͳ͍ https://www.herodevs.com/ https://softwareengineeringdaily.com/2024/08/27/17045/

Slide 32

Slide 32 text

Thank you