ric*_*res 6 typescript reactjs styled-components
根据 styled-components v4,.extend已弃用,扩展或组合组件的正确方法是:
const ButtonA = styled('button')`color: ${props => props.color};`
const ButtonB = styled(ButtonA)`background: 'white';`
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但是,我找不到使用 TS 执行此操作的正确方法,因为我遇到了一些错误,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
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似乎快到了,但无法弄清楚。
有什么建议吗?谢谢!
小智 7
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};
`;
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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" />;
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该@types/styled-components声明是很难理解(有无益类型参数的名称P,T,O,U),显然没有证件,所以我不能肯定这是否是预期的做法。我发现了一个相关的问题,但它似乎并没有证实这种方法。
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