Assign arrow function to a variable before exporting as module default import/no-anonymous-default-

reducer.js 报错 Assign arrow function to a variable before exporting as module default import/no-anonymous-default-export

export default (state = initState, action) => {
    console.log(12, action);
    switch (action.type) {
        case 'INCREMENT': //增加  加一
            return state + action.data;
        case 'DECREMENT':
            return state - action.data;
        default:
            return state;
    }
}

这样写会报错：Assign arrow function to a variable before exporting as module default import/no-anonymous-default-export

原因： 可能是你的编程工具安装了ESLint，所以这样写会显示错误,
解决方法：
把纯函数赋值给一个变量 const， 然后到处变量就可以了

const calculate = (state = initState, action) => {
    console.log(12, action);
    switch (action.type) {
        case 'INCREMENT': //增加  加一
            return state + action.data;
        case 'DECREMENT':
            return state - action.data;
        default:
            return state;
    }
}

export default calculate;

标签：function,return,default,state,export,anonymous,action,data
来源： https://blog.csdn.net/weixin_43750611/article/details/120870809