useState + setTimeout = broken state setter about didact HOT 3 CLOSED

Hey. It isn't a good idea to call setTimeout inside the render function.
Remember that render is called many times, and for each render you are creating 3 timeouts, and each timeout creates 3 more every time it's fired, so you end up with timeouts growing exponentially, and that will freeze your browser.

from didact.

Hey. It isn't a good idea to call setTimeout inside the render function.
Remember that render is called many times, and for each render you are creating 3 timeouts, and each timeout creates 3 more every time it's fired, so you end up with timeouts growing exponentially, and that will freeze your browser.

so this is the expected behaviour? well i thought i was able to use setTimeout in react but maybe it was not in render, just in in handler

from didact.

yes, it's the same on React: only use setTimeout inside of an effect or event handler.

from didact.