Converting JS to TypeScript

In this episode of Syntax, Wes and Scott talk about their respective processes for converting JavaScript to TypeScript in their projects, why you might want to, and tooling for moving to TypeScript. 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 00:10 Welcome 00:36 Sponsor: Sentry 02:23 Electrical updates 08:16 Moving to TypeScript 09:34 What are you doing with GraphQL? GraphQL Codegen

11:35 Why move to TypeScript? 12:00 Refactoring is easier 14:58 Better DX 18:42 Adding a tsconfig.json file 22:43 Figure out your tooling 23:50 Type Checker 25:13 MongoDB to TypScript Generator 26:44 Eslint-Typescript 28:03 Deprank Deprank

29:18 Refactor and rename to .ts 32:40 Typing your code 43:04 Utilities and unions 46:11 Where do you put your types? 49:29 Typing Dependencies Definitely Typed

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54:26 Global types 01:08 Now what? 03:58 SIIIIICK ××× PIIIICKS ××× ××× SIIIIICK ××× PIIIICKS ××× Scott: Elegrp USB C Walloutlet

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