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Rule priority, scope & exceptions
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frontend ruleP2universalStack: JavaScript
domresizeobserverperformanceweb-api
Observe element size with ResizeObserver, not the window resize event
ResizeObserver fires only when the observed element actually changes size, which is more precise and efficient than a window resize listener.
PR: hegnar-bellsheep-web · org-mining-hist-2026-06Created: Jun 18, 2026
Bad example
Old codets
| 1 | window.addEventListener('resize', recompute); |
Explanation (EN)
Objašnjenje (HR)
Good example
New codets
| 1 | const ro = new ResizeObserver(recompute); |
| 2 | ro.observe(el); |
Explanation (EN)
Objašnjenje (HR)