带有样式组件的 TypeScript [英] TypeScript with styled-components

问题描述

这里是 TypeScript 新手.我有一个使用 styled-components 的以下组件，我想将其转换为 TypeScript.

TypeScript newbie here. I have a below component using styled-components that I would like to convert to TypeScript.

import React from 'react'
import PropTypes from 'prop-types'
import styled from 'styled-components'


const propTypes = {
  name: PropTypes.string.isRequired // https://material.io/tools/icons/?style=baseline
}

const Icon = styled(({name, className, ...props}) => <i className={`material-icons ${className}`} {...props}>{name}</i>)`
  font-size: ${props => props.theme.sizeLarger};
`

Icon.propTypes = propTypes

export default Icon

我知道我可以用 interface

interface Props {
  name: string
}

然而，TypeScript 抱怨我没有声明 className.问题是，我希望使用 interface 作为开发人员可以提供的道具的一种规范，而不必声明像 className 或 这样的道具主题 由诸如 styled-components 之类的库注入.

However, TypeScript complains that I leave className undeclared. The thing is, I would ideally like to use the interface as a sort of spec for props that a developer can provide, without having to declare props like className or theme which are injected by libraries like styled-components.

如何正确地将此组件转换为 TypeScript?

How do I properly convert this component to TypeScript?

推荐答案

import React from "react";
import styled from "styled-components";

interface Props {
  name: string;
  className?: string;
}

const NonStyledIcon: React.SFC<Props> = ({ name, className, ...props }) => (
  <i className={`material-icons ${className}`} {...props}>
    {name}
  </i>
);

const Icon = styled(NonStyledIcon)`
  font-size: ${props => props.theme.sizeLarger};
`;

export default Icon;

根据 styled-components TypeScript 文档:当定义一个组件，您需要在 Props 界面中将 className 标记为可选

As per the styled-components TypeScript docs: when defining a component you will need to mark className as optional in your Props interface

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