# useEffect Hook (infinte LOOP)

**State updates → triggers re-render → state updates → triggers re-render → …**


https://alexsidorenko.com/blog/react-infinite-loop/


if we would send a Http request
for example, directly in the app.
Then we would send this request
whenever this function re-runs.
So for example, whenever this state changes
and that might sometimes be what you want
but definitely not always.

And if in response to your Http request
you for example eventually change some state,
you would even create an infinite loop.
Because :
**You would send the request
whenever the function re-runs.
And in response to the request
you change some state which triggers this function again.
So therefore such side effects should not go directly
into this component function
because that would most likely create bugs,
infinite loops or simply send too many Http requests
to stick with that example.
Therefore we'll have a better tool
for handling side effects
and that's a special React Hook
which we can use.
The useEffect()Hook.**