design-patterns – Page 7 – Türker Yıldırım

Patterns as a deliverable, and the editor who stopped asking us

Deep diveJune 27, 20239 min read

A request for a new landing page layout, for the ninth time. Every campaign page a developer ticket, for work that is arrangement.

A suite that runs in four minutes because it stopped touching the database

Deep diveMay 28, 202310 min read

1,400 tests, fourteen minutes, and 1,100 of them opening a transaction against MySQL for no reason anybody could name.

The anti-corruption layer we should have written first

Deep diveMay 9, 202310 min read

A supplier who renamed four fields in a minor release, without notice, and twenty-two files touched to accommodate it.

TypeScript 5, and the decorators we had been faking

Deep diveApril 21, 20239 min read

5.0 in March, decorators that are the standard proposal rather than the old flag, and a build nobody could explain.

A container we replaced with four functions

Deep diveApril 12, 20238 min read

A package with a dependency injection container, for eleven services, spending 90 ms compiling on a request that does 12 ms of work.

A command handler that returns nothing, and the id the caller wanted

NoteMarch 6, 20232 min read

A handler that returns void is the pure form, and the controller behind it needs the identifier of the thing it just created. Generating the identifier at the…

The generic PHP does not have, and the analyser that does

Deep diveFebruary 27, 20239 min read

A collection class that returns mixed, and forty call sites asserting the type by hand. Docblock generics, and where they stop being worth it.

Time in tests, and the clock we injected

NoteFebruary 16, 20232 min read

A test that fails between 23:00 and midnight, once a year, and passes on every rerun. PSR-20 standardised this interface in 2022, which is worth adopting for the…

useSyncExternalStore for a store that is not React’s

NoteFebruary 8, 20232 min read

Subscribing to an external store with useEffect and useState tears under concurrent rendering, which is what this hook exists to prevent. The snapshot function must return a cached…

Extracting a module without extracting a service

Deep diveFebruary 3, 202314 min read

A billing module everybody agrees should be separate, a team of four, and 88 classes that reference it. The boundary, drawn in code rather than in conversation.