I have SVG files written in Function Components.
import React from "react";
const MySVGBackground= (props) => {
return (
<svg> some svg here</svg>
);
};
export default MySVGBackground;
I need to render this as a background:
<div style={{ backgroundImage: `url(${MySVGBackground})` }}> </div>
but it's not working.
I can't purely import the SVG directly, because it gives me an error of Unexpected Token. So I have to wrap the SVG into the FC and export it.
Here is the sample code:
https://codesandbox.io/s/react-background-issue-9wt4x?file=/src/App.js
Try this:
https://codesandbox.io/s/react-background-issue-ut933
import React from "react";
import "./styles.css";
import BackgroundSVG from "./backgroundSVG";
// import this to render static markup
import { renderToStaticMarkup } from 'react-dom/server';
export default function App() {
// convert component to string useable in data-uri
const svgString = encodeURIComponent(renderToStaticMarkup(<BackgroundSVG />));
return (
<div className="App">
<h2
style={{
backgroundImage: `url("data:image/svg+xml,${svgString}")`
}}
>
Svg background
</h2>
</div>
);
}
The data: image/svg+xml;utf8 part tells the browser that raw image data is following.
More information can be found here:
https://css-tricks.com/lodge/svg/09-svg-data-uris/
https://gist.github.com/iansinnott/2e8fe9d9e4c6c7c55793d38f81c999a3
Related
This is my App.js. Here, I call the "Profile" Component.
import './App.css';
import Profile from "./Profile"
function App() {
return (
<div className="App">
<Profile />
</div>
);
}
export default App;
Then, inside Profile.js, I call Card component and inside the Card component, I've enclosed an image.
import React from 'react'
import Card from './Card'
import styles from "./Profile.module.css"
import image1 from "./assets/profile1.png"
const Profile = () => {
return (
<Card>
<div>
<img src={image1} alt="" />
</div>
</Card>
)
}
export default Profile
Inside of Card component, I've just applied some CSS to make it look like a Card.
import React from 'react'
import styles from "./Card.module.css"
const Card = () => {
return (
<div className={styles.card}>
</div>
)
}export default Card
This is my folder structure.
I'm really confused why the image isn't getting showed up. Currently this is the output I'm getting.
I've restarted the server as well. But it's not getting fixed.
your card doesn't have a child component return maybe that could be the problem
import React from 'react'
import styles from "./Card.module.css"
const Card = ({children}) => {
return (
<div className={styles.card}>
{children}
</div>
)
}
export default Card
try this
I'm trying to display an image in a react project, which is created with typescript template.
The code runs and the page shows only image icon, but not the image itself. What am I doing wrong?
I used: create-react app --template typescript. I can't access it if I place it in the public directory. So the folder is placed in the src directory.
this is how it looks like the component:
import React from 'react';
import styled from 'styled-components';
const logo = require('../../src/images/logo.png');
const StyledTable = styled.div``;
export const MyPage: React.FC = () => {
return (
<StyledTable>
<img alt="Profile Image" style={{ width: 100 }} src={String(logo)} />
</StyledTable>
);
};
export default MyPage;
This is how it looks like:
Are you using Create-React-App? If so, there is an easier way to import images
Copied from the doc
import React from 'react';
import logo from './logo.png'; // Just import it
console.log(logo); // /logo.84287d09.png
function Header() {
// Import result is the URL of your image
return <img src={logo} alt="Logo" />;
}
export default Header;
I'm attempting to add an SVG to a React app (built with create-react-app). When I try to add it as a component, I get an error like this:
InvalidCharacterError: Failed to execute 'createElement' on 'Document': The tag name provided ('/static/media/logo.8d229b2c.svg') is not a valid name.
What am I missing?
Code:
import React from 'react';
import Logo from '../img/logo.svg';
const Header = () => {
return (
<div>
<Logo />
</div>
)
}
export default Header;
You can import it this way:
import { ReactComponent as Logo } from '../img/logo.svg';
as said in CRA (create-react-app) documentation
an render it the way you want:
import React from 'react';
import { ReactComponent as Logo } from '../img/logo.svg';
const Header = () => {
return (
<div>
<Logo />
</div>
)
}
And also, if it's not necessary to render it as a component, you could just render your svg as an image this way:
import React from 'react';
import logo from '../img/logo.svg';
const Header = () => {
return (
<div>
<img src={logo} alt="logo"/>
</div>
)
}
export default Header;
You need to import the component using this syntax:
import { ReactComponent as Logo } from '../img/logo.svg';
Using the curly braces and ReactComponent is necessary - they tell React that you want to build a component with the SVG.
I only found this because of a Dan Abramov reply to a create-react-app issue. The link he posted in his comment no longer works, but it's still mentioned in the docs.
https://github.com/facebook/create-react-app/issues/5293
https://create-react-app.dev/docs/adding-images-fonts-and-files/
I want to display text in the form of react component inside react app.
When I tried to render it, it gives me not defined error, which is understandable.
import React from 'react';
import HeaderClass from './Header.css';
import logo from '../../Assets/Images/logo.jpg'
const Header = () => {
return(
<div className="header-wrapper">
<p className="logo__tagline"> <text /> </p>
<img className="App__logo" src={logo} alt="Name" />
</div>
)
};
export default Header;
Not sure exactly what you are trying to do?
But if i understand correct you could do like this:
In the text file:
import React, { Fragment } from 'react'; // So it doesn't create a unnecessary node element. **Only available in react 16+
export const Text = () => <Fragment>Your text here</Fragment>;
and then you can bring in the text element and use it in your code:
import React from 'react';
import HeaderClass from './Header.css';
import logo from '../../Assets/Images/logo.jpg'
import { Text } from './Text'
const Header = () => {
return(
<div className="header-wrapper">
<p className="logo__tagline"> <Text /> </p>
<img className="App__logo" src={logo} alt="Name" />
</div>
)
};
export default Header;
Maybe i have misunderstood the question but i don't know why you would want to do this.
I am new to ReactJS, but familiar with React Native. I am trying to to get a basic map component to be displayed.
My map component is
WaterMapView.js
import React, { Component } from 'react';
import { Map, InfoWindow, Marker, GoogleApiWrapper } from 'google-maps-react';
export class WaterMapView extends Component {
render () {
console.log(' I am here ');
return (
<Map
google={this.props.google}
style={styles.mapStyle}
initialCenter={{
lat: 40.854885,
lng: -88.081807
}}
zoom={15}
/>
)
}
}
const styles = {
mapStyle: {
height: '100%',
width: '100%'
}
}
export default GoogleApiWrapper({
apiKey: 'AIxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'
})(WaterMapView)
This component is embedded in MainDashboard.js as follows :
import React, { Component } from 'react';
import windowSize from 'react-window-size';
import WaterMapView from './WaterMapView';
class MainDashboard extends Component {
render () {
const height = this.props.windowHeight;
const {
containerStyle,
headerStyle,
navigationStyle,
mainPageStyle,
eventPageStyle,
mapPageStyle,
mapDisplayStyle,
mapPropertiesStyle
} = styles;
return (
<div style={{ ...containerStyle, height }} >
<div style={headerStyle} >
</div>
<div style={navigationStyle} >
</div>
<div style={mainPageStyle} >
<div style={eventPageStyle} >
</div>
<div style={mapPageStyle} >
<div style={mapDisplayStyle} >
<WaterMapView />
</div>
<div style={mapPropertiesStyle} >
</div>
</div>
</div>
</div>
);
};
};
My App.js component is :
import React from 'react';
import MainDashboard from './MainDashboard';
const App = () => {
return (
<div>
<MainDashboard />
</div>
)
};
export default App
And index.js is :
import React from 'react';
import ReactDOM from 'react-dom';
import './index.css';
import App from './Components/App';
import registerServiceWorker from './registerServiceWorker';
ReactDOM.render(<App />, document.getElementById('root'));
registerServiceWorker();
I am using React version 16.0.0 and google-maps-react version 1.1.0
I get an error accompanied by a dump of code. The error is :
TypeError: Cannot read property 'array' of undefined
I am not including the dump in this post. I can add that if required.
The problem seems very basic as the I do not even see the console.log statement 'I am here' in WaterMapView.js component.
Let me know what am I missing.
<div style={mapDisplayStyle} >
WaterMapView
</div>
Should be
<div style={mapDisplayStyle} >
<WaterMapView />
</div>
Otherwise react just interprets WaterMapView as a string and displays the string. When you want to use/render the component you need to add < > to id.