ReactJS: Parsing error: Export "NextQuestion" is not defined

Question

我很困惑为什么我的箭头函数没有导出。我收到了错误 "Parsing error: Export 'NextQuestion' is not defined"，但不确定原因。这是我的代码：

import React, { Component } from "react"

NextQuestion = () => {
    var neww = true
    this.setState((state) => {
        return {continue: neww}
        }
    )
}

LostALife = () => {
    var newLives = this.state.lives - 1
    this.setState((state) => {
        return {lives: newLives}
        }
    )
}

export {NextQuestion, LostALife};

Answer 1

你应该定义你的变量，使用const NextQuestion，你可以看到下面更新的代码

import React, { Component } from "react"

const NextQuestion = () => {
    var neww = true
    this.setState((state) => {
        return {continue: neww}
        }
    )
}

const LostALife = () => {
    var newLives = this.state.lives - 1
    this.setState((state) => {
        return {lives: newLives}
        }
    )
}

export {NextQuestion, LostALife};