Event date: April 5, 2026 — vitest-dev/vitest 3.0.5 On this page What the typecheck integration actually ships tsd vs inline expectTypeOf, head to head....
Read More
11 Minutes
11 Minutes
CVE-2026-27193: Nest 10.4.6 Reflector Metadata Prototype Pollution Fix
Reported: March 11, 2026 — CVE-2026-27193 NestJS A recent NestJS release patches a prototype pollution flaw in the Reflector metadata utility that ships....
Read More
12 Minutes
Nest Can’t Resolve Dependencies ‘?’ at Index 0 After Disabling emitDecoratorMetadata on TS 5.5
Overview The exact error Nest throws and what position 0 means Why Nest's injector collapses without design:paramtypes TypeScript 5.5 changed the....
Read More
12 Minutes
Migrating a Jest Suite to Vitest with TypeScript Strict Mode
The real reason Jest struggles with strict TypeScript Jest's type-checking story has not aged well. If you run a Jest 29 suite against a tsconfig.json....
Read More
10 Minutes
TypeScript const Type Parameters: When Generics Need Exact Inference
TypeScript 5.0 added const type parameters, a feature that solves a small but persistent annoyance: when you write a generic function and pass it a....
Read More
16 Minutes
TypeScript Abstract Class vs Interface: Which Should You Use?
Misunderstanding how the TypeScript compiler works under the hood is incredibly common. Just recently, a pull request crossed my desk where a developer....
Read More
14 Minutes
How to Migrate JavaScript to TypeScript Without Breaking Things
I remember the exact moment I decided I was done with pure JavaScript. It was 2:00 AM on a Friday, and a critical production service had just crashed....
Read More
14 Minutes
TypeScript Generics Tutorial: A Step-by-Step Guide for Beginners
I still remember staring at a legacy codebase from 2018, trying to figure out why a particular data table was randomly rendering [object Object] instead....
Read More
14 Minutes
How to Get Started with Typescript Tutorial
I still remember the exact production bug that broke me. It was 2017, a Friday afternoon, and a massive e-commerce Node.js application I was leading....
Read More
8 Minutes
Fixing Flaky TypeScript Tests: Async, Time, and APIs
I was staring at my terminal at 11pm last Tuesday. The CI pipeline failed on a test that had just passed locally 40 times in a row. A classic flaky test....
Read More
Surviving TypeScript and Webpack in 2026 (When Everyone Else Moved On)
Look, I know exactly what you're thinking. Why am I writing about Webpack right now? Half the industry just finished Learn about TypeScript Webpack....
Read More
6 Minutes
TypeScript interfaces: Stop writing basic user objects
Well, I was staring at my VS Code editor at 2 AM last Tuesday, watching the TypeScript language server completely choke....
Read More