Syntax - Tasty Web Development Treats

Sanity.io is a real-time headless CMS with a fully customizable Content Studio built in React. Get a Sanity powered site up and running in minutes at sanity.io/create. Get an awesome supercharged free developer plan on sanity.io/syntax.

If you want to know what’s happening with your code, track errors and monitor performance with Sentry. Sentry’s Application Monitoring platform helps developers see performance issues, fix errors faster, and optimize their code health. Cut your time on error resolution from hours to minutes. It works with any language and integrates with dozens of other services. Syntax listeners new to Sentry can get two months for free by visiting Sentry.io and using the coupon code TASTYTREAT during sign up.

03:38 - What is a TypeScript compiler?

• Do we still need Babel / WebPack?

07:49 - Babel

• Transpiler
• It doesn’t do typechecking
• New JS features that aren’t in TypeScript yet

10:22 - SWC

• Rust based compiler
• Doesn’t do type checking (yet)
• https://github.com/swc-project/swc/issues/571

13:03 - Deno

• Uses tsc right now
• Might move to Rust
• https://github.com/denoland/deno/issues/5432

13:36 - Surcase

• https://github.com/alangpierce/sucrase#transforms

14:46 - ESBuild

• Compiles, but doesn’t do any type checking
• Fastest

17:39 - What about bundlers?

• Parcel
• Snowpack
• Webpack
• ESBuild
• When might you still need a bundler?
  • To handle different types of files that are non-standard
    • Like importing CSS and images
• Treeshaking
• Smaller bundle files
  • Typescript can concatenate to a single file, or all .js files, but smaller / smarter bundles still need a tool for that
• Polyfills
  • Typescript does convert to syntax, but will not polyfill features
  • Something like Promise
    • Syntax can be transpiled to old code
    • Methods like allSettled aren’t

• Syntax 324: TypeScript Fundamentals
• Syntax 322: The Deno Show