https://www.pistack.xyz/tags/effect/ Recent content in Effect on Pi Stack Hugo en-us Wed, 19 Aug 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-08-19-typescript-functional-programming-effect-fp-ts-neverthrow-comparison/ Wed, 19 Aug 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-08-19-typescript-functional-programming-effect-fp-ts-neverthrow-comparison/ <p>Every TypeScript developer has felt it: a <code>fetch</code> that throws deep inside a promise chain, a <code>null</code> check you forgot at the wrong layer, and error handling code that reads like an archaeological dig across <code>try/catch</code> blocks. Functional programming libraries promise to fix this by making errors <em>values</em> instead of exceptions — but the choice is confusing. <strong>Effect</strong> (15,344 stars) is the rising framework claiming to replace half your stack, <strong>fp-ts</strong> (11,538 stars) is the algebraic toolbox that taught a generation of TypeScript devs about <code>Either</code> and <code>Option</code>, and <strong>neverthrow</strong> (7,675 stars) is the simple <code>Result</code> type that just wants to make your functions honest. They are not the same thing, and picking wrong means rewiring your entire codebase.</p>