I have a function to get data from local storage and set that local storage value to state but value doesn't set the state
this is my code,
const [mobileNum, setMobilenum] = useState();
useEffect(() => {
getDatalocal();
}, []);
async function getDatalocal() { // get data from local
try {
let mobileNumRes = await AsyncStorage.getItem('@number_Token')
setMobilenum(mobileNumRes) // set mobile number for state
console.log("mobile num ======================================>>>", mobileNum)
} catch (error) {
console.log("error in get mobile no", error)
}
}
I'm calling this function in useEffect, Can anyone tell what I am doing wrong and please help me to solve this
setMobilenum
is the asynchronous method, so you can't get the updated value of mobileNum
right after setMobilenum
. You should get it in the another useEffect with adding a dependency mobileNum
.
const [mobileNum, setMobilenum] = useState();
useEffect(() => {
getDatalocal();
}, []);
async function getDatalocal() { // get data from local
try {
let mobileNumRes = await AsyncStorage.getItem('@number_Token')
setMobilenum(mobileNumRes)
} catch (error) {
console.log("error in get mobile no", error)
}
}
useEffect(() => {
console.log("mobile num ==============>>>", mobileNum)
}, [mobileNum]);
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