Adding TypeScript to an existing SvelteKit application

TypeScript can help prevent a lot of runtime errors by checking types on code before you even deploy and run it. In this episode, I take our existing SvelteKit application and add TypeScript to it. While not converting 100% of the code, TS being in place makes it easy to convert bits and pieces over at a time.
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⏱️ Timestamps:
  • 00:00 - Introduction
  • 00:28 - Demo
  • 01:25 - getting started
  • 02:14 - tsconfig, svelte config, package.json, eslint, service worker
  • 03:50 - hooks changes
  • 04:20 - sitemap changes
  • 04:40 - .svelte file changes
  • 05:52 - stores.ts changes
  • 06:15 - endpoint changes
  • 10:00 - using typescript in .svelte files

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My name is David W Parker and I’m creating and publishing videos on ProgrammingTIL to help teach anyone and everyone who wants to code. I’m a huge fan of Ruby on Rails, Svelte, TailwindCSS, and WebGL. I’ve used React a lot in the past, as well as some Vue and AngularJS. I’ve done some professional Python and Django. I like to create real applications and my tutorials will walk you through how to build something real from beginning-to-end.

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