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Rule priority, scope & exceptions
Use this to align rules with the senior-level structure (P0/P1/P2, scope, exceptions/tradeoffs).
backend ruleP1universalStack: javascript
stringsvalidationwhitespaceauth
Trim strings before checking them for emptiness
A whitespace-only string is truthy, so trim before treating it as present, e.g. reject sessions/tokens that are blank after trimming.
PR: hegnar-forum-web · org-mining-hist-2026-06Created: Jun 20, 2026
Bad example
Old codetypescript
| 1 | if (!blaizeSession) { |
| 2 | return res.status(401).json({ message: 'Unauthorized' }); // ' ' passes |
Explanation (EN)
Objašnjenje (HR)
Good example
New codetypescript
| 1 | if (!blaizeSession || blaizeSession.trim() === '') { |
| 2 | return res.status(401).json({ message: 'Unauthorized' }); |
| 3 | } |
Explanation (EN)
Objašnjenje (HR)