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Introduction
When growing internet functions with React, we usually wish to embody visible components to seize the customers’ curiosity. These visible components may very well be any kind of picture, together with JPGs, PNGs, SVGs, GIFs, and plenty of others.
On this article, we are going to learn to import pictures with React and see the varied methods this may very well be achieved.
Exterior pictures and native pictures are the 2 forms of pictures we wish to use in our React software. We’re primarily involved with native pictures on this article as a result of exterior pictures don’t require us to import them.
Exterior pictures are pictures which have already been hosted externally and might be accessed by anybody through a URL, whereas native pictures are pictures which can be solely out there to us on our native laptop or venture folder and that we wish to use in our software.
How you can Show Photographs hosted Externally
Earlier than we get into easy methods to import pictures, it is essential to know that pictures hosted elsewhere work the identical manner we have all the time used pictures in HTML – by including the URL to the src attribute of the img tag:
const App = () => {
return (
<div>
<img src="https://reactjs.org/logo-og.png" alt="React Brand" />
</div>
);
};
Let’s now learn the way we will import (native) pictures with React!
How you can Import Photographs with React
Aside from the exterior pictures, the way in which pictures are utilized in React differs considerably from that of different frameworks and even HTML. These pictures should first be imported into React earlier than they can be utilized in our software.
This may be completed in two methods: by utilizing the import assertion or by utilizing the require() perform. We’ll go over each approaches.
How you can Import Photographs With React Utilizing the import Assertion
As a result of it’s simpler to learn and perceive, the import assertion is probably the most generally used methodology for importing domestically saved pictures in React. The photographs are handled as default exports, and once we import them, we accomplish that in the identical manner that we import elements. That is achieved by specifying the relative path from the file to the picture we’re importing:
import Brand from './pictures/react-logo.png';
const App = () => {
return (
<div>
<img src={Brand} alt="React Brand" />
</div>
);
};
Within the code above, we nonetheless use the img tag and src attribute, however this time the src attribute receives a variable fairly than a string, which is handed utilizing curly braces in JSX.
Word: We will import as many pictures as we might wish to, however every picture should have a novel identify within the import assertion, else it would throw an error.
You will need to perceive easy methods to specify and acquire relative paths for information; in any other case, bugs and errors might happen. Within the previous instance, the picture was saved in an /src/pictures.
How you can Import Photographs With React utilizing the require() Operate
The require() perform is a Node.js perform that’s used to incorporate exterior modules from information apart from the present file. It really works in the identical manner because the import assertion and permits us to incorporate pictures:
let Brand = require('./pictures/react-logo.png');
const App = () => {
return (
<div>
<img src={Brand} alt="React Brand" />
</div>
);
};
The one distinction is the primary line the place we required the picture through its relative path after which saved it in a variable which we accessed within the img tag through curly braces.
We will additionally determine to do that inline and keep away from the additional line used to assign the picture to a variable, as it isn’t obligatory:
const App = () => {
return (
<div>
<img src={require('./pictures/react-logo.png')} alt="React Brand" />
</div>
);
};
Conclusion
We realized easy methods to import native pictures utilizing the import assertion and the require() perform on this article.
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