AsyncStorage.getItem returns undefined : React Native

Question

Codeflow is-

I am checking if an entry called listobject exists in the AsyncStorage.

1. If it doesn\'t exist, then, I create an object,

Answer 1

I'm not quite following the entire question I do however see an issue with the use AsyncStorage. Going by the name, Async implies that the operations are asynchronous. So when you do getItem(key), you should either pass in a callback or use the Promise object it returns as you are doing in the first line of code.

obj = AsyncStorage.getItem('listobject'); console.log("obj = "+ JSON.stringify(obj));

obj is going to be the Promise in this case.

Then if you check on obj for the presence of a data and isDirty child property, they will not exist on the Promise.

Answer 2

I actually copied the object from one to another. It worked.

AsyncStorage.getItem('listobject').then((obj) => {
    if(obj == undefined)
    {
        var obj1 ={};
        obj1.data ={};
        obj1.data.isdirty = true;
        console.log("obj1 = "+ JSON.stringify(obj1));
        AsyncStorage.setItem('listobject',obj1);
        obj = obj1; //THIS IS WHAT I DID!
        console.log("obj = "+ JSON.stringify(obj));
    }
    if(obj.data.isdirty)
    {
        obj.data.isdirty = false;
        AsyncStorage.setItem('listobject',JSON.stringify(obj));
        return AsyncStorage.getItem('listobject');
    }
}).done();