When I previously used JavaScript, the grand debate was which JS utility library to use: jQuery vs. mootools vs. YUI vs. dojo. While I’m glad this tradition of grand debates has continued (Angular vs. React vs. Vue), the community has also quickly coalesced around the biggest improvement to JavaScript in the last decade: TypeScript.
In this post, I want to talk about my experience migrating an existing JavaScript codebase to TypeScript. But first, a quick digression on why I love TypeScript, and how TypeScript is the culmination of a number of great ideas in PL.
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