Is there a way to wait until a function is finished?

Question

I\'m trying to get information (true/false) from AsyncStorage in a function and create a string which is importent to fetch data in the next step. My problem is, the function is

Answer 1

Try this instead. Async functions and Promises can be tricky to get right and can be difficult to debug but you're on the right track.

async _getFetchData() {
    let channels = "";

    let results = await AsyncStorage.getAllKeys();

    results.forEach((result) => {
        if (result.includes("not") === false) {
            let item = await AsyncStorage.getItem(result);

            if (item === 'true') {
                console.log(`channel: ${result}`)

                channels = `channel_id ${result}`;
            }
        }
    });

    return channels;
}

_fetchData() {
    this._getFetchData().then((channels) => {
        console.log(`channel required: ${channel}`);
    });
}