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Rule priority, scope & exceptions
Use this to align rules with the senior-level structure (P0/P1/P2, scope, exceptions/tradeoffs).
frontend ruleP2stack specificStack: react
reactrenderingarraysconciseness
Guard a map with a presence check instead of an extra index variable
Render a list with value && value.map(...) to avoid an extra variable or branch when the source may be empty/absent.
PR: hegnar-web · org-mining-hist-2026-06Created: Jun 19, 2026
Bad example
Old codetsx
| 1 | const hasCategories = categoryUrlName.length > 0; |
| 2 | return hasCategories ? categoryUrlName.map(render) : null; |
Explanation (EN)
Objašnjenje (HR)
Good example
New codetsx
| 1 | return categoryUrlName && categoryUrlName.map(render); |
Explanation (EN)
Objašnjenje (HR)