When I import:
import {ReactComponent as Name} from '../assets/name.svg';
I get the error, but when I do:
import test from '../assets/name.svg';
The error goes away.
I've installed the react-polyfills and have imported them at the top of index.js:
import 'react-app-polyfill/ie11';
import 'react-app-polyfill/stable';
import React, {Component} from 'react';
import Particle from '../Particle/particle';
import {ReactComponent as Name} from '../assets/name.svg';
import './App.css';
class App extends Component {
constructor(props) {
super(props);
}
// componentDidMount() {
// console.log(this.state.points);
// }
render() {
return (
<React.Fragment>
<Particle />
<div className="name">
{/* <Name/> */}
</div>
</React.Fragment>
);
}
}
export default App;
It should be showing the svg Edge, but I get the error. When i uncomment the component, the page doesn't even load, but works in other browsers
Related
this is my index.html
<div id="root"></div>
<div id="portaltest"></div>
this my App.js
import React, { Component } from "react";
import PortalTest from "./PortalTest";
export class App extends Component {
render() {
return (
<div>
<PortalTest />
</div>
);
}
}
export default App;
this is what's in PortalTest.js
import React from "react";
import { ReactDOM } from "react";
function PortalTest() {
return ReactDOM.createPortal(
<div>This is the PORTAL DIV</div>,
document.getElementById("portaltest")
);
}
export default PortalTest;
This suppose to show the contents of PortalTest.js instead it only returns a blank page.
What did I do wrong?
Use import ReactDOM from 'react-dom' instead of import { ReactDOM } from 'react' and it should work.
See this sandbox.
welcome.js
import React, { Component } from 'react'
class welcome extends Component
{
render()
{
return <h1>Class Component</h1>
}
}
export default welcome
App.js
import React from 'react';
import logo from './logo.svg';
import './App.css';
import Greet from './components/Greet'
import welcome from './components/welcome'
function App() {
return (
<div className="App">
<Greet />
<welcome />
</div>
);
}
export default App;
So basically in welcome.js i have a code for rendering hello rahul and i have exported that and i have imported that in App.js but it showing welcome is declared but never used please help
You have a problem with naming. React assumes every tag beginning with a small letter is native (f ex a <div> or <table>). You have to name your own components with capital letters.
App.js
import React from 'react';
import logo from './logo.svg';
import './App.css';
import Greet from './components/Greet'
import Welcome from './components/Welcome'
function App() {
return (
<div className="App">
<Greet />
<Welcome />
</div>
);
}
export default App;
It's also a good idea to name your files with components with capital letters, to make them easy to identify.
You are importing a component in lower case letters. React doesn't recognize that as a component. So just restructure it as :
import Welcome from './components/Welcome'
then do
<Welcome/>
I got following error when I start to run the local server:
Failed to compile ./src/App.js Module not found: Can't resolve
'./Main' in '/home/sol/React/kuehnfotografie/src'
import React, { Component } from 'react';
import ReactDOM from 'react-dom';
import Main from './Main';
import { Provider, createComponent } from 'react-fela';
import { createRenderer } from 'fela';
class App extends React.Component {
render() {
return (
<div className="content">
<Main />
</div>
);
}
}
export default App;
Folder structure
This is the main.js file:
import React from 'react';
import ReactDOM from 'react-dom';
import { Provider, createComponent } from 'react-fela';
import { createRenderer } from 'fela';
import Header from './main/Header';
import Content from './main/Content';
import Footer from './main/Footer';
class Main extends React.Component {
render() {
return (
<div className="main">
<Header />
<Content />
<Footer />
</div>
);
}
}
export default Main;
Try to remove
package-lock.json
, run
npm install
and then
npm run
start again.
React fails to some weird error when importing another component. If I remove ChristmasMap references in App.js then app works fine. But I want to import the ChristmasMap. Any help?
App.js
import React, { Component } from 'react';
import './ChristmasMap';
class App extends Component {
render() {
return (
<div>
<p>asd</p>
<ChristmasMap />
</div>
);
}
}
export default App;
ChristmasMap.js
import React, { Component } from 'react';
class ChristmasMap extends Component {
render(){
return (
<div>
component
</div>
);
}
};
export default ChristmasMap;
And the error I'm getting is App.js:56 Uncaught ReferenceError: ChristmasMap is not defined(…)
You should do:
import ChristmasMap from './ChristmasMap'
Sorry, i am new in React.
I have 2 components in my react application. Here is the parent:
import React, { Component } from 'react';
import logo from './logo.svg';
import './App.css';
import './Searchbar';
const App =() => {
return (
<div className="App">
<div className="App-header">
<Searchbar></Searchbar>
<h2>Welcome to React</h2>
</div>
</div>
);
}
export default App;
and here is the searchbar component:
import React,{Component} from 'react';
export default class Searchbar extends Component{
render(){
return <div>Here is search bar</div>;
}
}
Unfortunately, when the page loads it complains with the error:
Uncaught ReferenceError: Searchbar is not defined
It seems that, it does not recognize the Searchbar component.
What is the problem?
The solution is really simple. You are importing the searchbar wrongly in your file. You need to import it like import Searchbar from './Searchbar'; , since you have exported it as default you also need to import it in default manner.
import React, { Component } from 'react';
import logo from './logo.svg';
import './App.css';
import Searchbar from './Searchbar';
const App =() => {
return (
<div className="App">
<div className="App-header">
<Searchbar></Searchbar>
<h2>Welcome to React</h2>
</div>
</div>
);
}
export default App;