Articles about JavaScript

By Bartosz ŁaniewskiApril 05, 20246 min readJavaScript, Architecture
Why you should avoid Barrel Files in JavaScript Modules?
Barrel files consolidate the exports of multiple modules into a single file. We use them to import a module using a single import statement without…
By Bartosz ŁaniewskiNovember 19, 20234 min readJavaScript, TypeScript
API Response validation with Zod
When implementing applications, we often need to communicate with external services via APIs. In such cases, it’s crucial to ensure that the data received…
By Bartosz ŁaniewskiMay 12, 20183 min readJavaScript, Flow, npm
How to export Flow definitions in npm packages?
More than 240 000 repositories on GitHub use Flow, but only a few export Flow definitions. In this article, I’ll show you how to export Flow definitions…
By Bartosz ŁaniewskiApril 28, 20189 min readJavaScript, npm
How to publish a Tree Shaking friendly npm package?
With the rise of ES2015, modules have officially become an integral part of JavaScript. By their nature, ES2015 modules are static and can be optimized at…