react native is not increasing my number by 2 instead it keeps append new text to my state. I don't have a problem when subtracting the problem is just with adding
const [vol, setVol] = useState(10)
useEffect(()=>{
setVol(e=> e + 2)
},[])
console.log(vol)
// output 102
I need to increase the state vol (10) by 2 so output should be 12
e will be a string and hence will follow string addition change it to Number before adding const [vol, setVol] = useState(10)
useEffect(()=>{
setVol(e=> String(Number(e) + 2))
},[])
console.log(vol)
// output 12