Created
October 25, 2017 16:54
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one-line React component for conditionally wrapping children
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import React from 'react'; | |
const ConditionalWrap = ({condition, wrap, children}) => condition ? wrap(children) : children; | |
const Header = ({shouldLinkToHome}) => ( | |
<div> | |
<ConditionalWrap | |
condition={shouldLinkToHome} | |
wrap={children => <a href="/">{children}</a>} | |
> | |
<img src="logo.png"/> | |
</ConditionalWrap> | |
</div> | |
) |
@jensbodal thanks but the types are in the package already
an even better api, and the way i use it is:
<Wrap
if={someCondition}
with={ch => <View>{ch}</View>}
>
<Text />
</Wrap>
here we go, nice TS code
import React, { FC } from "react"
interface WrapProps {
if: boolean
with: (children: React.ReactNode) => JSX.Element
}
export const Wrap: FC<WrapProps> = ({ if: condition, with: wrapper, children }) => {
return condition ? wrapper(children) : <>children</>
}
@kitze Small question)) For what reasons React.cloneElement is used?
I have an improvement suggestion for this:
import { FC, ReactNode, createElement } from 'react';
interface WrapProps {
if?: boolean;
with: typeof createElement.arguments[0];
wrapperProps: typeof createElement.arguments[1];
children: NonNullable<ReactNode>;
}
const Wrap: FC<WrapProps> = ({
if: condition,
with: wrapper,
wrapperProps,
children,
}) =>
condition ? createElement(wrapper, wrapperProps, [children]) : <>children</>;
export default Wrap;
By using createElement
we can use Wrap like so:
<Wrap if={condition} with="a" wrapperProps={{ 'data-testid': 'wrapper' }}>
<p>Wrapped text</p>
</Wrap>
Instead of always passing a (children) => <jsx />
function.
FYI this function breaks the react/no-unstable-nested-components eslint rule.
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typescript version: