我正在尝试将Flow与react配合使用,我遵循了一些教程,但是我无法解决此错误,我的代码如下所示:
import React, { Component } from "react";
import { Link, withRouter } from "react-router-dom";
import { login } from "../../services/auth";
import api from "../../services/api";
import { getToken } from "../../services/auth";
import type { RouterHistory } from "react-router-dom";
type State = {
username: number,
password: string,
history: RouterHistory,
}
class Home extends Component < State > {
handleChange = this.handleChange.bind(this);
handleSignIn = this.handleSignIn.bind(this);
state = {
username: '',
password: '',
history: '',
};
错误出现在组件内部的状态。
编辑1: 添加:
...
type Props = {/ * ... * /};
...
class Home extends Component <Props, State>
成功了!但是你想知道为什么吗?
答案 0 :(得分:1)
在React flow definitions中,组件的通用类型参数首先是Props,然后是状态。因此,您已经注意到,首先要提供Props类型,然后说明您要执行的操作。