Wes Bos & Scott Tolinski - Full Stack JavaScript Web Developers

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Hasty Treat - TypeScript Compilers and Build Tools

Syntax - Tasty Web Development Treats

Full Stack Developers Wes Bos and Scott Tolinski dive deep into web development topics, explaining how they work and talking about their own experiences. They cover from JavaScript frameworks like React, to the latest advancements in CSS to simplifying web tooling.

<p class="has-line-data" data-line-start="7" data-line-end="8">In this Hasty Treat, Scott and Wes talk about the differences between compilers and build tools in TypeScript.</p> <h2 class="code-line" data-line-start="9" data-line-end="10"><a id= "Sanity__Sponsor_9" name="Sanity__Sponsor_9"></a>Sanity - Sponsor</h2> <p class="has-line-data" data-line-start="10" data-line-end="11"> <a href="http://sanity.io/">Sanity.io</a> 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 <a href= "https://www.sanity.io/create">sanity.io/create</a>. Get an awesome supercharged free developer plan on <a href= "https://www.sanity.io/syntax">sanity.io/syntax</a>.</p> <h2 class="code-line" data-line-start="12" data-line-end="13"> <a id="Sentry__Sponsor_12" name="Sentry__Sponsor_12"></a>Sentry - Sponsor</h2> <p class="has-line-data" data-line-start="13" data-line-end="14">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 <a href= "https://sentry.io/" target="_blank" rel= "noopener noreferrer">Sentry.io</a> and using the coupon code TASTYTREAT during sign up.</p> <h2 class="code-line" data-line-start="15" data-line-end="16"> <a id="Show_Notes_15" name="Show_Notes_15"></a>Show Notes</h2> <p class="has-line-data" data-line-start="16" data-line-end="17"> 03:38 - What is a TypeScript compiler?</p> <ul> <li class="has-line-data" data-line-start="17" data-line-end="19"> Do we still need <a href= "https://babeljs.io/">Babel</a> / <a href= "https://webpack.js.org/">WebPack</a>?</li> </ul> <p class="has-line-data" data-line-start="19" data-line-end="20"> 07:49 - <a href="https://babeljs.io/">Babel</a></p> <ul> <li class="has-line-data" data-line-start="20" data-line-end="21"> Transpiler</li> <li class="has-line-data" data-line-start="21" data-line-end="22"> It doesn’t do typechecking</li> <li class="has-line-data" data-line-start="22" data-line-end="24"> New JS features that aren’t in TypeScript yet</li> </ul> <p class="has-line-data" data-line-start="24" data-line-end="25"> 10:22 - <a href="https://swc.rs/">SWC</a></p> <ul> <li class="has-line-data" data-line-start="25" data-line-end="26"> Rust based compiler</li> <li class="has-line-data" data-line-start="26" data-line-end="27"> Doesn’t do type checking (yet)</li> <li class="has-line-data" data-line-start="27" data-line-end="29"> <a href= "https://github.com/swc-project/swc/issues/571">https://github.com/swc-project/swc/issues/571</a></li> </ul> <p class="has-line-data" data-line-start="29" data-line-end="30"> 13:03 - <a href="https://deno.land/">Deno</a></p> <ul> <li class="has-line-data" data-line-start="30" data-line-end="31"> Uses tsc right now</li> <li class="has-line-data" data-line-start="31" data-line-end="32"> Might move to Rust</li> <li class="has-line-data" data-line-start="32" data-line-end="34"> <a href= "https://github.com/denoland/deno/issues/5432">https://github.com/denoland/deno/issues/5432</a></li> </ul> <p class="has-line-data" data-line-start="34" data-line-end="35"> 13:36 - <a href= "https://github.com/alangpierce/sucrase">Surcase</a></p> <ul> <li class="has-line-data" data-line-start="35" data-line-end="37"> <a href= "https://github.com/alangpierce/sucrase#transforms">https://github.com/alangpierce/sucrase#transforms</a></li> </ul> <p class="has-line-data" data-line-start="37" data-line-end="38"> 14:46 - <a href="https://esbuild.github.io/">ESBuild</a></p> <ul> <li class="has-line-data" data-line-start="38" data-line-end="39"> Compiles, but doesn’t do any type checking</li> <li class="has-line-data" data-line-start="39" data-line-end="41"> Fastest</li> </ul> <p class="has-line-data" data-line-start="41" data-line-end="42"> 17:39 - What about bundlers?</p> <ul> <li class="has-line-data" data-line-start="42" data-line-end="43"> <a href="https://parceljs.org/">Parcel</a></li> <li class="has-line-data" data-line-start="43" data-line-end="44"> <a href="https://www.snowpack.dev/">Snowpack</a></li> <li class="has-line-data" data-line-start="44" data-line-end="45"> <a href="https://webpack.js.org/">Webpack</a></li> <li class="has-line-data" data-line-start="45" data-line-end="46"> <a href="https://esbuild.github.io/">ESBuild</a></li> <li class="has-line-data" data-line-start="46" data-line-end="49"> When might you still need a bundler? <ul> <li class="has-line-data" data-line-start="47" data-line-end="49"> To handle different types of files that are non-standard <ul> <li class="has-line-data" data-line-start="48" data-line-end="49"> Like importing CSS and images</li> </ul> </li> </ul> </li> <li class="has-line-data" data-line-start="49" data-line-end="50"> Treeshaking</li> <li class="has-line-data" data-line-start="50" data-line-end="52"> Smaller bundle files <ul> <li class="has-line-data" data-line-start="51" data-line-end="52"> Typescript can concatenate to a single file, or all .js files, but smaller / smarter bundles still need a tool for that</li> </ul> </li> <li class="has-line-data" data-line-start="52" data-line-end="58"> Polyfills <ul> <li class="has-line-data" data-line-start="53" data-line-end="54"> Typescript does convert to syntax, but will not polyfill features</li> <li class="has-line-data" data-line-start="54" data-line-end="58"> Something like Promise <ul> <li class="has-line-data" data-line-start="55" data-line-end="56"> Syntax can be transpiled to old code</li> <li class="has-line-data" data-line-start="56" data-line-end="58"> Methods like allSettled aren’t</li> </ul> </li> </ul> </li> </ul> <h2 class="code-line" data-line-start="58" data-line-end="59"> <a id="Links_58" name="Links_58"></a>Links</h2> <ul> <li class="has-line-data" data-line-start="59" data-line-end="60"> <a href="https://syntax.fm/show/324/typescript-fundamentals">Syntax 324: TypeScript Fundamentals</a></li> <li class="has-line-data" data-line-start="60" data-line-end="62"> <a href="https://syntax.fm/show/322/the-deno-show">Syntax 322: The Deno Show</a></li> </ul> <h2 class="code-line" data-line-start="62" data-line-end="63"> <a id="Tweet_us_your_tasty_treats_62" name= "Tweet_us_your_tasty_treats_62"></a>Tweet us your tasty treats!</h2> <ul> <li class="has-line-data" data-line-start="63" data-line-end="64"> <a href="https://www.instagram.com/stolinski/">Scott’s Instagram</a></li> <li class="has-line-data" data-line-start="64" data-line-end="65"> <a href= "https://www.instagram.com/LevelUpTutorials/">LevelUpTutorials Instagram</a></li> <li class="has-line-data" data-line-start="65" data-line-end="66"> <a href="https://www.instagram.com/wesbos/">Wes’ Instagram</a></li> <li class="has-line-data" data-line-start="66" data-line-end="67"> <a href="https://twitter.com/wesbos">Wes’ Twitter</a></li> <li class="has-line-data" data-line-start="67" data-line-end="68"> <a href="https://www.facebook.com/wesbos.developer">Wes’ Facebook</a></li> <li class="has-line-data" data-line-start="68" data-line-end="69"> <a href="https://twitter.com/stolinski">Scott’s Twitter</a></li> <li class="has-line-data" data-line-start="69" data-line-end="70"> Make sure to include <a href= "https://twitter.com/SyntaxFM">@SyntaxFM</a> in your tweets</li> </ul>

In this Hasty Treat, Scott and Wes talk about the differences between compilers and build tools in TypeScript.
 Sanity - Sponsor 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.
 Sentry - Sponsor 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.
 Show Notes 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

  Links  Syntax 324: TypeScript Fundamentals

 Syntax 322: The Deno Show

  Tweet us your tasty treats!  Scott’s Instagram

 LevelUpTutorials Instagram

 Wes’ Instagram

 Wes’ Twitter

 Wes’ Facebook

 Scott’s Twitter

 Make sure to include @SyntaxFM in your tweets

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Hasty Treat - TypeScript Compilers and Build Tools

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