andrewbranch

Original Tweet

tsc performance consuming .ts vs .d.ts files in npm packages

What if TypeScript libraries published just .ts sources to npm instead of .js and .d.ts files? This might already be tempting for Bun-only libraries, but how will that impact users? This is easy to answer by experimenting on existing libraries that ship .js, .d.ts, and .ts files.

RxJS ships .js and .d.ts files, but also .ts files for debugability purposes. By tweaking its package.json "exports", we can compare tsc performance on this file with imports resolving to .d.ts files vs .ts source files:

import {} from "rxjs";

jeremyben

import * as path from 'path'
import ts from 'typescript'

function build(
	override: {
		compilerOptions?: ts.CompilerOptions
		include?: string[]
		exclude?: string[]
		files?: string[]
		extends?: string

JoeyBurzynski

58 bytes of CSS to look great nearly everywhere

When making this website, i wanted a simple, reasonable way to make it look good on most displays. Not counting any minimization techniques, the following 58 bytes worked well for me:

main {
  max-width: 38rem;
  padding: 2rem;
  margin: auto;
}