Question

我有一个界面

@echo off
@echo off
for /f "delims=" %%i in ('dir "c:\20*" /b /ad /o-d') do set "latest=%%i" & goto :comp
:comp
for /f "tokens=1 delims=" %%a in ('PowerShell -Command "& {Get-Date -format "yyyyMM"}"') do if "%%a" == "%latest%" echo Zip/7z/Rar C:\%latest% here

和引用该文件的同一文件中的类

interface ITodoFilterItem  {
  name: string,
  filter: string,
  filterTodos: any
}

但是当我尝试在该文件的底部添加propTypes时

class TodoFilterItem extends Component<ITodoFilterItem> {
  constructor (props:ITodoFilterItem) {
    super(props);
    this.handleFilter = this.handleFilter.bind(this);
  }

我得到：

TodoFilterItem.propTypes = {
  name: PropTypes.string,
  filter: PropTypes.string,
  filterTodos: PropTypes.any
}

fyi：我的顶部是Property 'propTypes' does not exist on type 'typeof TodoFilterItem'. TS2339

Answer 1

TS要求在类定义中初始化所有静态属性。将以下内容添加到您的课程中，以确保TS可以正确分析该课程。

static propTypes: {
   name: Requireable<string>;
   filter: Requireable<string>;
   filterTodos: Requireable<any>;
};

import React, { Component, Requireable } from 'react';
import PropTypes from 'prop-types';

interface ITodoFilterItem {
    name: string;
    filter: string;
    filterTodos: any;
}

class TodoFilterItem extends Component<ITodoFilterItem> {
    static propTypes: {
        name: Requireable<string>;
        filter: Requireable<string>;
        filterTodos: Requireable<any>;
    };

    constructor(props: ITodoFilterItem) {
        super(props);
        this.handleFilter = this.handleFilter.bind(this);
    }

    handleFilter() {}

    render() {
        return <span />;
    }
}

TodoFilterItem.propTypes = {
    name: PropTypes.string,
    filter: PropTypes.string,
    filterTodos: PropTypes.any,
};

export default TodoFilterItem;

反应打字稿，类型“ typeof TodoFilterItem”上不存在属性“ propTypes”。 TS2339

1 个答案: