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in this video tutorial we will talk about what is a cleanup function in use effect sometimes our side effect need to be shut off for example we have a counter app account for example okay and we use it interval for that to set the time State okay this variable and for cleaning this we should use Clear interval okay it is an example for that and also we have another example for this function that is I mean we would like to use the Subscribe subscription with your socket the subscription need to be turned off when we donamp;#39;t need when we donamp;#39;t use that when we would need that so these are the cases that we use cleanup function yeah in this example we use the set interval function to set our time using set interval function okay but we didnamp;#39;t used the cleanup function right now in this example okay so whenever the component unmount so the state will destroy with component okay when the state destroyed but here the problem is that that we didnamp;#39;t use the cleane
