属性“儿童”的类型缺失

Question

我正在尝试使用babel-loader和ts-loader使用 Typescript 设置 Storybook。

除了在 React 组件中使用children组件外，一切正常：

[tsl] ERROR in .../stories/index.stories.tsx(8,56)
      TS2769: No overload matches this call.
      Property 'children' is missing in type '{ title: string; }' but required in type 'Props'.

这是.storybook/main.js文件：

module.exports = {
  addons: [
    "@storybook/addon-knobs",
  ],
  stories: ["../packages/**/*.stories.tsx"],
  webpackFinal: async config => {
    config.module.rules.push({
      test: /\.(ts|tsx)$/,
      exclude: /node_modules/,
      use: [
        {
          loader: require.resolve('ts-loader')
        },
        {
          loader: require.resolve('babel-loader'),
          options: {
            presets: [
              "@babel/preset-env",
              "@babel/preset-react"
            ]
          }
        }
      ],
    });

    config.resolve.extensions.push('.ts', '.tsx');

    return config;
  }
};

这是index.stories.tsx文件：

import React from "react";

import Collapsible from "../src";

export default {
  title: "Collapsible"
};

const content = <span>Content</span>;

export const simpleCollapsible = () => (
  <Collapsible title="Collapsible">{content}</Collapsible>
);

这是 Collapsible 的实现：

import React, { ReactNode, useState } from "react";
import styled, { ThemeProvider } from "styled-components";
import {
  BorderProps,
  ColorProps,
  FlexboxProps,
  LayoutProps,
  SpaceProps,
  TypographyProps
} from "styled-system";
import Theme from "@atw/theme";

import { KeyboardArrowDown } from "@styled-icons/material";

import Box from '~/box';
import Button from '~/button';

interface Props
  extends BorderProps,
    ColorProps,
    FlexboxProps,
    LayoutProps,
    SpaceProps,
    TypographyProps {
  children: ReactNode;
  title: string;
}

const Collapsible = ({ children, title, ...rest }: Props) => {
  const [isCollapsed, setIsCollapsed] = useState(false);

  const handleCollapse = () => {
    setIsCollapsed(!isCollapsed);
  };

  return (
    <ThemeProvider theme={Theme}>
      <Button
        border="none"
        padding={0}
        marginBottom={2}
        width={1}
        textAlign="start"
        onClick={handleCollapse}
        {...rest}
      >
        <IconBox isCollapsed={isCollapsed}>
          <KeyboardArrowDown size="24px" />
        </IconBox>
        {title}
      </Button>
      {!isCollapsed && (
        <Box display="flex" flexDirection="column">
          {children}
        </Box>
      )}
    </ThemeProvider>
  );
};

export default Collapsible;

这里有什么我做错了吗？

Answer 1

一种可能的解决方案是利用功能组件中的默认子级机制React.FC ，它允许您挂载子级，而无需在类型定义中明确将它们包含为 prop。 对于您的情况，可以通过应用以下更改来实现：

interface Props
  extends BorderProps,
    ColorProps,
    FlexboxProps,
    LayoutProps,
    SpaceProps,
    TypographyProps {
  title: string;
}

const Collapsible: React.FC<Props> = ({ children, title, ...rest }) => {
  ...
};

为此工作沙箱

Answer 2

第1步

添加 React.FC：它已经为你声明了孩子。 并在 React 中添加您的自定义道具。

你的代码应该是这样的：

const Collapsible : React.FC<Props> = ({ children, title, ...rest }) => {

第2步

interface Props extends BorderProps,
    ColorProps,
    FlexboxProps,
    LayoutProps,
    SpaceProps,
    TypographyProps {
  children: ReactNode; // as React.FC declares it for you, just delete this line
  title: string;
}

第 3 步

没有第 3 步 :)

Answer 3

我添加了Babel Preset Typescript ，错误消失了。

这就是我的.storybook/main.js现在的样子：

module.exports = {
  addons: [
    "@storybook/addon-knobs",
  ],
  stories: ["../packages/**/*.stories.tsx"],
  webpackFinal: async config => {
    config.module.rules.push({
      test: /\.(ts|tsx)$/,
      exclude: /node_modules/,
      use: [
        {
          loader: require.resolve('ts-loader'),
          options: {
            configFile: '../tsconfig.json',
            transpileOnly: true
          }
        },
        {
          loader: require.resolve('babel-loader'),
          options: {
            presets: [
              "@babel/preset-env",
              "@babel/preset-react",
              "@babel/preset-typescript"
            ]
          }
        }
      ],
    });

    config.resolve.extensions.push('.ts', '.tsx');

    return config;
  }
};