useEffect side effect

React Native
1

is anybody experienced the same way?

useEffect (() => {
        setNoItems(count);
        setTitlex(title);
        if(operator==1 || operator==0){
            setMinusx(operator);
            setChecking(0);
        }
        if(operator==2 || operator==0){
            setPlusx(operator);
            setChecking(0);
        }
        setSelectedItem(checking);
        //all sets are props
        console.log("check "+checking);
    });//issue about this is that the last component in array cause a React app freeze

useEffect (() => {
        setNoItems(count);
        setTitlex(title);
        if(operator==1 || operator==0){
            setMinusx(operator);
            setChecking(0);
        }
        if(operator==2 || operator==0){
            setPlusx(operator);
            setChecking(0);
        }
        setSelectedItem(checking);
        //all sets are props
        console.log("check "+checking);
    },[count,operator,checking]);//this time I add dependency, issue about this is that the moment I click the component React app freeze

Any help would be appreciated! I am a newbie in hooks

2

According to this SO answer “using setState inside useEffect will create an infinite loop that most likely you don’t want to cause.”

1 Like
3

thanks for your answer sir. Can you suggest on how can I pass that value inside the useEffect to other screen. Since I’m trying to pass all the data from my component to CartScreen and vise versa.

4

Instead of using useEffect, can you pass the the data via props? Maybe something like what’s described in this SO article?