在 React-Native 的非异步函数中调用异步函数 - Firebase

Question

This is what I'm trying do in React-Native. Async functions are making calls to firebase.

async functionOne() {
    asyncStuffHappens
}

functionTwo() {
    this.functionOne();
}

this.functionOne(); is undefined. I'm not sure how to call an async function from another function.

Answer 1

Like this:

async functionOne() {
    asyncStuffHappens
}

functionTwo() {
    (async () => {
        await this.functionOne();
    })();
}

This is called an IIFE (Immediately-invoked function expression) . It's a function executed right after it's created

Answer 2

Like @lonesomeday said, this.functionOne() is all I needed. My issue was I wasn't binding this properly in the onPress of the TouchableOpacity I was calling it from.