Rules Hub

Coding Rules Library

← Back to all rules

Rule priority, scope & exceptions

Use this to align rules with the senior-level structure (P0/P1/P2, scope, exceptions/tradeoffs).

PriorityP1 — maintainability, architecture, long-term qualityScopeUniversal — language-agnostic, broadly applicable

Exceptions / tradeoffs (EN)Iznimke / tradeoffi (HR)

frontend ruleP1universalStack: javascript

i18nlocalizationformattingcorrectness

Format numbers and dates with a locale matching the actual audience

Choose a locale (or explicit formatting) that reflects your users' conventions rather than borrowing an unrelated locale that happens to look similar.

PR: hegnar-forum-web · org-mining-hist-2026-06Created: Jun 20, 2026

Bad example

Old codetypescript

1	`value.toLocaleString('hr-HR'); // app audience is Norwegian`

Explanation (EN)

Objašnjenje (HR)

Good example

New codetypescript

1	`// Use the audience's locale or explicit grouping/decimal separators`
2	`formatNorwegianNumber(value);`

Explanation (EN)

Objašnjenje (HR)

Login required