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how expensive are shallow === checks compared to re-rendering unnecessarily though? what advantages would stateless functional components offer above purecompon
by ma_long_bay 9y ago
how expensive are shallow === checks compared to re-rendering unnecessarily though? what advantages would stateless functional components offer above purecomponents?
- ma_long_bay 9y agoto clarify, i meant stateless functional components after they've been optimized in React 16
- vbezhenar 9y agoIf your check returned true, you'll re-render anyway, so time for this check is effectively wasted. Imagine that every check returns true. It's better to avoid this check at all in that component.