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0 pointsnitwit0052y ago0 comments

The React style forces a lot more object creation and copying then you're probably imagining. If you want to update an array, you generally have to make a new array, and copy over all the data except for your mutation: https://react.dev/learn/updating-arrays-in-state

If you, for example, hold your voxel level data in a big array, that means copying that data every time the level is modified.

0 comments

shmde2y ago

"The React style forces a lot more object creation and copying then you're probably imagining."

Its not react style its literally the core of how react works(immutablity). To rerender a component you need the new state to point towards a new reference to an object/array (hence the copying data to a new array) because JS compares objects/arrays through reference and not value. Not exactly react's fault but how JS works.

nitwit005OP2y ago

I said "react style" because they are not using React in a conventional way: https://github.com/kevzettler/react-regl

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