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Rule priority, scope & exceptions
Use this to align rules with the senior-level structure (P0/P1/P2, scope, exceptions/tradeoffs).
fullstack ruleP1universalStack: JavaScript/TypeScript
correctnessarrayslogic
Choose every vs some to match the intended presence semantics
A 'has any data' check should use .some(), not .every(); confusing the two flips behavior, e.g. returning true when all values are absent.
PR: hegnar-bellsheep-web · org-mining-hist-2026-06Created: Jun 18, 2026
Bad example
Old codets
| 1 | const hasData = [a, b, c].every(v => !!v); // false if any one is missing |
Explanation (EN)
Objašnjenje (HR)
Good example
New codets
| 1 | const hasData = [a, b, c].some(v => v !== null); // true if at least one present |
Explanation (EN)
Objašnjenje (HR)