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A comment on When does React re-render? Explaining rerenders and how to optimize performance. Parent comment

Re:When does React re-render? Explaining rerenders and how t... by lowwave on Wednesday April 29, 2020 @05:10AM (#23017050)
React's shouldComponentUpdate hook seems to be a bit of after thought and a bit of relatively complex over engineering.

A comparison of mithril can see that React is almost 2 times as slow.

https://mithril.js.org/framework-comparison.html

The only reason to use React for SPA is the job market, and that companies like the fact that is backed by Facebook.

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Re:When does React re-render? Explaining rerenders and how t... by jsf01 on Wednesday April 29, 2020 @05:33AM (#23017196)
React is far greater than 2x as slow on some metrics, like boot time, but the newer versions actually aren’t as bad as the pre-fiber versions that those benchmarks are based on for DOM updates. For boot up time React is still about 5x worse than Mithril, but on create & update benchmarks they’re now at least in the same ballpark.

https://krausest.github.io/js-framework-benchmark/current.ht...

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Re:When does React re-render? Explaining rerenders and how t... by azangru on Wednesday April 29, 2020 @06:28AM (#23017560)
Nit: shouldComponentUpdate is a lifecycle method, not a hook. The corresponding approach in React's new world is React.memo.
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