Brand New World with Annotated Types

Brand New World w/ Annotated Types #tskaigi2025_kataritai 2025/06/06

Type as Annotation

tsc o -g ts

type stripping via amaro(swc)

Type as Annotation

Stage: 1

class Person { name: string; constructor(name: string) { this.name = name; } TypeScript getGreeting(): string { return Hello, ${this.name}; } }

Types as Annotation class Person { name /*: string*/; constructor(name /*: string*/) { this.name = name; } getGreeting()/*: string*/ { return Hello ${this.name}; } }

🤔 ?? How ?? 🤔

Standardise TypeScript in ECMA

Comments not wrapped with /* */

const name: string = "Jxck" Treat as Comment

const name: ここはどうせコメント なので何を書いても 怒られない??🤔 = "Jxck"

Brand new World !! 🤩🤩🤩

SQL as Comments const user: logging(warn) = "Jxck"

Cooments as Comments const regist: (FIXME) regist って 日本語は無いって 何度言ったら、、 = true

Decorator as comments const user: select id, name from Users where user id = "Jxck"

Brain f**k as comments const user: ++++++++[>++++++++++++++<-]>+++.< >+.< >--.< >---------.< >+++++.< >-------.< = "Jxck"

Type as Annotation 🤔 Your World as Comments Your Preprocessor

🤔 ?? Possible ?? 🤔

Last discussion: 2023/09 tl;dr; Work In Very Early Progress

🤔