react-bypass

Introduction

Built on top of the @radix-ui/react-slot library.

react-bypass is a simple utility React component that can be used as a composable approach to skip its first children and prevent it from rendering. Please note that react-bypass is meant to be an escape hatch and other approaches may be considered first. Its main use case is to be able to transform external JSX you may not have control of, received as children.

<Bypass>
    <div>
        <span>Hello world</span>
    </div>
</Bypass>

renders

<span>Hello world</span>

That is, <div> gets "bypassed".

It is especially useful in cases where you want to conditionally change a button's behavior in a composable way.

Example: Display a "Log in" dialog on click when an user is not authorized

import * as React from "react";
import { Dialog, DialogTrigger, DialogContent } from "@radix-ui/react-dialog";
import { Bypass } from "react-bypass";

const ProtectedAction = ({ children }) => {
    const { isLoggedIn } = useSession();

    // Allow regular action when user is logged in
    if (isLoggedIn) {
        return children;
    }

    // Bypass the button and replace it with a dialog trigger instead
    return (
        <Dialog>
            <DialogTrigger>
                <Bypass>{children}</Bypass>
            </DialogTrigger>
            <DialogContent>
                <SignUp />
            </DialogContent>
        </Dialog>
    );
};

// Only allows uploads to start when user is logged in
// When not logged in, the dialog will appear instead and `startUpload` won't be called
<ProtectedAction>
    <button onClick={startUpload}>
        <span>Click to upload files</span>
    </button>
</ProtectedAction>

Usage

To start using the library, install it to your project:

npm i react-bypass

pnpm add react-bypass

import { Bypass } from "react-bypass";

// ...

function Title() {
    return (
        <Bypass>
            <div>
                <h1>My Awesome Title</h1>
            </div>
        </Bypass>
    );
}

/**
 * Output:
 *
 * <h1>My Awesome Title</h1>
 **/

The <Bypass> component itself doesn't render anything. Any prop passed onto it will be forwarded down to its children. Set disabled={true} to disable its default behavior.

About

Created in 2024, released under the MIT license.