根据样式组件v4,.extend
已过时,扩展或组成组件的正确方法是:
const ButtonA = styled('button')`color: ${props => props.color};`
const ButtonB = styled(ButtonA)`background: 'white';`
但是,由于出现一些错误,例如,我找不到用TS执行此操作的正确方法,例如:
import styled from "styled-components";
// Let's create ButtonA
type ButtonAProps = { a: string };
const ButtonA = styled<ButtonAProps, "button">("button")`
color: ${props => props.a};
`;
// So, here is what I've tried
// Fail #1
// =======
type ButtonBProps = { b: string };
const ButtonB = styled<ButtonBProps, ButtonAProps>(ButtonA)`
background: ${props => props.b};
`; // Here I get autocompletion only for B props :(
const Test = () => <ButtonB a="something" />; // And here I get autocompletion only for A props :(
// Fail #2
// =======
type ButtonBProps = { b: string } & ButtonAProps;
const ButtonB = styled<ButtonBProps, ButtonAProps>(ButtonA)`
background: ${props => props.b};
`; // Here I get autocompletion for A & B props, good!
const Test = () => <ButtonB a="something" />; // Here I still get autocompletion only for A props :(
// Fail #3
// =======
type ButtonBProps = { b: string } & ButtonAProps;
const ButtonB = styled<ButtonBProps, ButtonBProps>(ButtonA)` // Property 'b' is missing in type 'ButtonAProps', of course
background: ${props => props.b};
`; // Here I get "props has implicitly any type"
const Test = () => <ButtonB />; // Here I don't get any type checking at all
似乎快要出现了,但无法弄清楚。
有什么建议吗?谢谢!
答案 0 :(得分:1)
这似乎对我有用:
type ButtonBProps = { b: string };
const ButtonB = styled<ButtonAProps>(ButtonA)<ButtonBProps>`
background: ${props => props.b};
`;
const Test = () => <ButtonB a="something" b="somethingelse" />;
@types/styled-components
声明很难理解(使用无用的类型参数名称P
,T
,O
,U
),并且显然没有记录,所以我不能确定这是预期的方法。我找到了a related issue,但似乎没有证实这种方法。
答案 1 :(得分:1)
截至2019年9月,以下代码也有效:
// First extend ButtonAProps with an additional prop
interface ButtonBProps extends ButtonAProps {
b:string;
}
// ButtonB Component
const ButtonB = styled(ButtonA)<ButtonBProps>`
background: ${props => props.b};
`;