Uncategorized – Page 175 – Türker Yıldırım

Trimming a stream approximately, because exactly is O(n)

NoteMay 14, 20191 min read

A stream does not empty itself, and exact trimming has to walk to find the boundary — which on a large stream is a foreground operation on a…

String.prototype.matchAll returns an iterator, not an array

NoteMay 14, 20192 min read

Getting every match with capture groups meant a while loop over regex.exec, mutating lastIndex, with an infinite loop waiting for anyone who forgets the g flag. Throwing on…

Symfony 4.3 shipped an HTTP client worth using

Deep diveMay 14, 201910 min read

The framework had no client of its own and now it has one with a reason to exist: responses that are lazy by default, and concurrency without a…

Site health, and the plugin that was quietly failing

Deep diveMay 9, 201910 min read

5.2 added a screen that tells you what is wrong, which is new for WordPress. What the checks actually test, and the recovery email nobody receives.

A cache that survives the thing it is caching

Deep diveMay 8, 201914 min read

The cache expired at noon and the database fell over at 12:00:01. A lock, a two-tier expiry, jittered TTLs, and versioned keys — in that order of importance.

Elasticsearch 7 has no mapping types, and the URL changed

NoteMay 7, 20192 min read

6.x allowed one type per index and 7 removes them entirely, which changes every document and search URL in every client. The reason is that fields with the…

Elasticsearch 7 removed mapping types

Deep diveApril 30, 201910 min read

One type per index in 6, none at all in 7, and every query URL changes. The reindex cannot be done in place — and the default shard…

A Symfony service alias per environment, for the test double

NoteApril 29, 20192 min read

Injecting a fake payment gateway into a functional test usually means a container manipulation in the test setup, which is fragile and runs after the container is compiled.…

InnerBlocks, and a block that contains other blocks

NoteApril 25, 20192 min read

A container block — a card, a column, a callout with arbitrary content — needs the editor to nest blocks inside it, and that is one component rather…

Symfony 4.4 and 5.0 shipped the same day on purpose

NoteApril 24, 20191 min read

21 November brought both, with identical features — 4.4 is the LTS with deprecations still present, and 5.0 is the same code with them removed. That is a…