react router in depth 5 custom 404 page

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sure! react router is a powerful library for routing in react applications. it allows you to manage navigation and rendering of different components based on the url path. in this tutorial, we'll explore how to set up routing in a react application and create a custom 404 page.

setting up react router

1. **installation**: first, ensure you have a react app set up. if you don't, you can create one using create react app. then, install react router:



2. **basic setup**: next, you need to set up the basic structure for your routes.

creating a basic router

create a simple react app with different components for routing. for our example, let’s create three components: `home`, `about`, and `contact`.

**creating components**:

create a folder named `components` in the `src` directory, and inside that folder, create three files: `home.js`, `about.js`, and `contact.js`.

**home.js**:
**about.js**:
**contact.js**:
setting up the router

now, let’s set up the router in the `app.js` file.

**app.js**:
creating a custom 404 page

now, let's create a custom 404 page that will be displayed whenever a user navigates to a route that doesn't exist.

**notfound.js**:

create a new file named `notfound.js` in the `components` folder:
explanation of the code

1. **browserrouter**: this is a high-level component that keeps the ui in sync with the url. it should wrap your entire application.

2. **route**: this component is used to define a route. the `path` prop specifies the url path, and the `component` prop specifies which component should be rendered when the path matches.

3. **switch**: this component renders the first child `route` that matches the location. it helps in rendering only one route at a time.

4. **link**: this component is used to create navigational links. it behaves like an anchor tag but prevents the page from reloading.

5. **custom 404 page**: the last `route` in the `switch` component does not specify a path, which means it wil ...

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