Develop Reference

React Bootstrap issue

The grid system don't work maybe i'm dumb but i don't understand, my code :
import React from "react";
import {Col, Row} from "react-bootstrap";
const Home = () => {
return (
<Row className="home">
<Col xs={6}>2 of 3 (wider)</Col>
<Col xs={6}>3 of 3</Col>
</Row>
)
}
export default Home;

You should import bootstrap css in your project
import 'bootstrap/dist/css/bootstrap.min.css'

Try to add the bootstrap CDN link in the index.html in the public folder.
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
Reference https://getbootstrap.com/docs/3.3/getting-started/

React Navbar is not showing

I have been trying to put a Navbar into a React Project using reactstrap. But the Navbar is not showing just the h1 in the NavbarBrand is rendered for some reasons. I tried to change the css styling, copy and pasted other example Navbars from different websites and tried other kinda similar solutions from here but nothing worked. I am using React version 17.0.2 and reactstrap version 8.9.0.
This is my Navbar Component:
import React, { Component } from 'react';
import { Navbar, NavbarBrand, Nav, NavbarToggler, Collapse, NavItem } from 'reactstrap';
//import { NavLink } from 'react-router-dom';
class Header extends Component {
constructor(props) {
super(props);
this.state = {
isNavOpen: false
};
this.toggleNav = this.toggleNav.bind(this);
}
toggleNav() {
this.setState({
isNavOpen: !this.state.isNavOpen
});
}
render() {
return(
<Navbar bg="dark" variant="dark">
<div className="container">
<NavbarToggler onClick={this.toggleNav} />
<NavbarBrand href="/">
<h1>Navbar</h1>
</NavbarBrand>
<Collapse isOpen={this.state.isNavOpen} navbar>
<Nav navbar>
<NavItem>
<p>Test</p>
</NavItem>
</Nav>
</Collapse>
</div>
</Navbar>
);
}
}
export default Header;
How the navbar looks
I am rather new to React and Javascript overall i hope someone can help me.

You have the isNavOpen in state set to false and your
<Collapse isOpen={this.state.isNavOpen} navbar>
<Nav navbar>
<NavItem>
<p>Test</p>
</NavItem>
</Nav>
</Collapse>
depends upon isNavOpen state which expects to be true to be shown on the screen.
Try setting isNavOpen to true in the state.

How to inherit styles of an element from another file in styled-components

I have a navigation bar on the home page with background-color: white; On moving to another page. I want it to turn black.
My Navigation Styles file:
import styled from 'styled-components'
export const Nav = styled.nav`
background-color: #fff;
`
My Navigation file where I am importing the styles:
import { Link } from 'react-router-dom'
import Nav from './NavStyles'
const NavBar = () => {
return(
<Nav>
<ul>
<li>
<Link to="/">Home</Link>
</li>
<li>
<Link to="/shop">Shop</Link>
</li>
<li>
<Link to="/cart">Cart</Link>
</li>
</ul>
</Nav>
)
}
export default NavBar
My ShopStyles file (where changing the background-color):
import styled from 'styled-components'
import { Nav } from '../Nav/NavStyles'
const ShopNav = styled(Nav)`
background-color: #323232;
`;
export default ShopNav
My Shop file:
import ShopNav from './ShopStyles'
import { Nav } from '../Nav/NavStyles'
const Shop = () => {
return(
<div>
<Nav>
<ShopNav></ShopNav>
</Nav>
<h1>Over here my shop design will come</h1>
</div>
)
}
export default Shop
App.js:
import { BrowserRouter as Router, Switch, Route } from 'react-router-dom'
import Home from './components/Home/Home'
import NavBar from './components/Nav/Nav'
import Shop from './components/Shop/Shop'
const App = () => {
return (
<Router>
<NavBar />
<Switch>
<Route exact path="/"> <Home /> </Route>
<Route exact path='/shop'> <Shop /> </Route>
</Switch>
</Router>
);
}
export default App;
How do I get the color black with my navigation bar?

I don't understand about your worry.
The code which you've written is correct and I have also tested your code.
I recommend that you will check your code again.

Navigation Links do not work outside of the App Component

I have 4 files: App.js, navbar.js, signIn.js, signUp.js. I expect the navbar to be displayed at the top of each page that the user navigates. The links in the navbar work on the homepage but the links are disabled on any other page.
I've tried installing react-bootstrap through npm instead of using the cdn but that did not change the issue. I tried creating another group of components called "NavigationLinks.js" but that didn't work either. I'm at a loss as to what else I could do.
Here are the relevant files:
App.js
import logo from './logo.svg';
import './App.css';
import Navbar from './components/layout/navbar'
import Dashboard from './components/feed/dashboard'
import SignIn from './components/auth/signIn'
import SignUp from './components/auth/signUp'
import { BrowserRouter, Switch, Route } from 'react-router-dom';
function App() {
return (
<BrowserRouter>
<div className="App">
<Navbar/>
<Switch>
<Route exact path="/" component={Dashboard}/>
<Route path="/signin" component={SignIn}/>
<Route path="/signup" component={SignUp}/>
</Switch>
</div>
</BrowserRouter>
);
}
export default App;
Navbar.js
import { Switch, Route, Link} from 'react-router-dom';
import { Navbar, Nav, Form, FormControl, Button, NavItem } from 'react-bootstrap';
//import './navbar.css';
class navbar extends Component {
render() {
return (
<div>
<div>
<Navbar>
<Navbar.Brand as={Link} to='/'>Rekindle</Navbar.Brand>
<Navbar.Collapse>
<Nav className="mr-auto">
<NavItem eventkey={1} href="/">
<Nav.Link as={Link} to="/" >Home</Nav.Link>
</NavItem>
<NavItem eventkey={1} href="/signup">
<Nav.Link as={Link} to="/signup" >Sign Up</Nav.Link>
</NavItem>
<NavItem eventkey={1} href="/signin">
<Nav.Link as={Link} to="/signin" >Login</Nav.Link>
</NavItem>
</Nav>
</Navbar.Collapse>
</Navbar>
</div>
{/*this div works for the routing */}
<div>
</div>
</div>
);
}
}
export default navbar;
The code compiles without errors, but I want to be able to navigate back to the homepage from the signIn and signUp routes.

In your code snippet I found some issue, like you missed to import react only.
Any file you create, you need to import react like,
import React from 'react'; //default
Also you are extending Component in your navbar component which is also need to import from react package.
2 ways to extend Component.
Way 1,
import React from 'react';
class navbar extends React.Component{
render(){
return(
<div>...</div>
)
}
}
export default navbar;
Way 2,
import React,{Component} from 'react';
class navbar extends Component{
render(){
return(
<div>...</div>
)
}
}
export default navbar;
You missed this in you navbar component.
Here is the working code snippet for you.

It looks like these integration errors are common and you are suppose to use: https://github.com/react-bootstrap/react-router-bootstrap

React js - Why is navbar component not being imported?

It works when I give the part inside app.js but it shows blank screen when it is put in another file navbar.js and imported. If the code in navbar.js is directly added in app.js instead of importing, it works fine and navbar appears. Otherwise blank screen appears.
index.js is shown below:
import React from 'react';
import ReactDOM from 'react-dom';
import App from './App';
ReactDOM.render(
<App />,
document.getElementById('root')
);
app.js file
import React, { Component } from 'react';
import navbar from './navbar.js';
class home extends Component {
render() {
return (
<div>
<navbar />
</div>
);
}
}
export default home;
navbar.js file:
import React, { Component } from 'react';
import {Navbar} from 'react-bootstrap';
import {NavItem} from 'react-bootstrap';
import {Nav} from 'react-bootstrap';
class navbar extends Component{
render() {
return (
<Navbar collapseOnSelect>
<Navbar.Header>
<Navbar.Brand>
React-Bootstrap
</Navbar.Brand>
<Navbar.Toggle />
</Navbar.Header>
<Navbar.Collapse>
<Nav>
<NavItem eventKey={1} href="#">Link</NavItem>
<NavItem eventKey={2} href="#">Link</NavItem>
</Nav>
<Nav pullRight>
<NavItem eventKey={1} href="#">Link Right</NavItem>
<NavItem eventKey={2} href="#">Link Right</NavItem>
</Nav>
</Navbar.Collapse>
</Navbar>
);
}
}
export default navbar;
Please help, thanks in advance.

You should always start the name of your custom React components with
a uppercase letter.
import React, { Component } from 'react';
import Navbar from './Navbar.js';
class Home extends Component {
render() {
return (
<div>
<Navbar />
</div>
);
}
}
export default Home;
and it's recommended to use the same name for the file name as well. So it should be ./Navbar.js instead of ./navbar.js
Read this page from the official documentation for more information.
Always start component names with a capital letter. For example, <div/> represents a DOM tag, but <Welcome /> represents a component and
requires Welcome to be in scope.