Bundle Side Optimization in Future JavaScript - JSConf JP 2021

JSConf JP 2021

Transcript

1. Bundle Side Optimization in Future JavaScript JSConf JP 2021 Yuku Kotani (@MonchiFC)
2. 2 Yuku Kotani (@MonchiFC) - Software Engineer @ Ubie Discovery - AI https://ubie.app/ - TypeScript+Next.js / Kotlin+Spring Boot / GraphQL / Capacitor - Student (B3) @ - Blog https://yuku.dev 2
3. 3 Web - - ECMAScript - - 3rd-party script
4. 4 - (Dead Code Elimination) - (Mangling) - (Code Splitting) - (Tree Shaking)
5. 5 - (Dead Code Elimination) terser, Rollup - (Mangling) terser - (Code Splitting) webpack, Rollup, Next.js, Nuxt - (Tree Shaking) webpack, Rollup
6. 6 - (Dead Code Elimination) terser, Rollup - (Mangling) terser - (Code Splitting) webpack, Rollup, Next.js, Nuxt - (Tree Shaking) webpack, Rollup
7. 7 DDD
8. 8 DDD
9. 9 1st Approach: Dead Code Elimination
10. 10 - - obj obj
11. 11 TypeScript obj User obj isAdult getFullname getFullName
12. 12 TS AST JavaScript TypeScript TS Compiler JS AST JavaScript webpack JS AST DCE JavaScript terser JS ⾒
13. 13 TS AST JavaScript TS Compiler JS AST JavaScript webpack JS AST DCE JavaScript terser JS ⾒ TypeScript
14. 14 TS AST JS JavaScript DCE SWC, Rome TypeScript
15. 15 1 SWC Rome
16. 16 2nd Approach: Tree Shaking
17. 17 Tree Shaking JS/TS
18. 18 Tree Shaking JS/TS A. - / `obj.method()` -
20. 20 A. Bind-this operator
21. 21 Bind-this operator func.bind() func.call() Stage-1 this JavaScript Bind Operator https://yuku.dev/articles/2021-11-11/javascript-bind-this-op
22. 22 Bind-this operator TypeScript This Parameter ⾒ This :: This Parameter
23. 23 2 ECMAScript
24. 24 - class-based OOP - SWC Rome - ECMAScript JS-way https://meety.net/matches/SwBiENIgCVFp