[TypeError: null不是对象(计算'_this.state.confirm.confirm')]

Question

我正在尝试通过电话注册，但是我得到了一个错误:TypeError不是一个对象(计算'_this.state.confirm.confirm')。这是什么原因呢？

import auth from '@react-native-firebase/auth';

class PhoneVerificationPart extends Component {
    constructor(props) {
        super(props);
        this.state = {
            confirm: null,
            code: null
        };
    } 
signInWithPhoneNumber = async (+90....) => {

        const confirmation = await auth().signInWithPhoneNumber(phoneNumber);
        this.setState({
            confirm: confirmation
        })
    }
    confirmCode = async () => {
        try {
            await this.state.confirm.confirm(this.state.code)
            await this.props.closeAndCreateCustomer()
        } catch (error) {
            console.log(error)
        }
    } }

Answer 1

当this.state.confirm最初被定义为null时，在它被重置之前，您将从该状态访问它。

使用这种方式

var phoneNumber = "+16505554567"; // should be in string

firebase.auth().signInWithPhoneNumber(phoneNumber)
    .then(function (confirmationResult) {
      // confirmationResult can resolve with the fictional testVerificationCode above.
      return confirmationResult.confirm(testVerificationCode)
    }).catch(function (error) {
      // Error; SMS not sent
      // ...
    });