What is react-svg?
The react-svg npm package is a React component that allows you to easily include and manipulate SVG files in your React applications. It provides a simple way to load SVG files and apply various transformations and customizations to them.
What are react-svg's main functionalities?
Basic SVG Loading
This feature allows you to load an SVG file into your React component. The 'src' prop specifies the path to the SVG file.
<ReactSVG src="/path/to/your.svg" />
Customizing SVG with Props
This feature allows you to customize the SVG before it is injected into the DOM. The 'beforeInjection' prop is a function that receives the SVG element and allows you to manipulate it.
<ReactSVG src="/path/to/your.svg" beforeInjection={(svg) => { svg.classList.add('svg-class'); svg.setAttribute('style', 'width: 200px'); }} />
Using SVG as a Component
This feature allows you to use the SVG as a React component, making it easy to include and manage within your React application.
import { ReactSVG } from 'react-svg';
const MyComponent = () => (
<ReactSVG src="/path/to/your.svg" />
);
Handling SVG Load Events
This feature allows you to handle events when the SVG is loaded. The 'onLoad' prop is a function that is called when the SVG has been successfully loaded.
<ReactSVG src="/path/to/your.svg" onLoad={() => console.log('SVG loaded!')} />
Other packages similar to react-svg
react-inlinesvg
react-inlinesvg is a React component that allows you to load and inline SVGs. It provides similar functionality to react-svg but focuses on inlining SVGs directly into the DOM, which can be useful for applying CSS styles directly to the SVG elements.
svgr
SVGR is a tool that transforms SVGs into React components. It allows you to import SVG files as React components, providing a more integrated approach to using SVGs in React applications. Unlike react-svg, SVGR converts SVG files into React components at build time.
react-svg-loader
react-svg-loader is a Webpack loader that allows you to import SVG files as React components. It provides a similar functionality to SVGR but is specifically designed to work with Webpack. This package is useful if you are already using Webpack in your build process.
react-svg
![minzipped size](https://img.shields.io/bundlephobia/minzip/react-svg?style=flat-square)
A React component that injects SVG into the DOM.
Background | Basic Usage | Live Examples | API | Installation | FAQ | License
Background
Let's say you have an SVG available at some URL, and you'd like to inject it into the DOM for various reasons. This module does the heavy lifting for you by delegating the process to @tanem/svg-injector, which makes an AJAX request for the SVG and then swaps in the SVG markup inline. The async loaded SVG is also cached, so multiple uses of an SVG only require a single server request.
Basic Usage
import React from 'react'
import { render } from 'react-dom'
import { ReactSVG } from 'react-svg'
render(<ReactSVG src="svg.svg" />, document.getElementById('root'))
Live Examples
API
Props
src
- The SVG URL.afterInjection(err, svg)
- Optional Function to call after the SVG is injected. If an injection error occurs, err
is an Error
object. Otherwise, err
is null
and svg
is the injected SVG DOM element. Defaults to () => {}
.beforeInjection(svg)
- Optional Function to call just before the SVG is injected. svg
is the SVG DOM element which is about to be injected. Defaults to () => {}
.evalScripts
- Optional Run any script blocks found in the SVG. One of 'always'
, 'once'
, or 'never'
. Defaults to 'never'
.fallback
- Optional Fallback to use if an injection error occurs. Can be a string, class component, or function component. Defaults to null
.httpRequestWithCredentials
- Optional Boolean indicating if cross-site Access-Control requests for the SVG should be made using credentials. Defaults to false
.loading
- Optional Component to use during loading. Can be a string, class component, or function component. Defaults to null
.renumerateIRIElements
- Optional Boolean indicating if SVG IRI addressable elements should be renumerated. Defaults to true
.useRequestCache
- Optional Use SVG request cache. Defaults to true
.wrapper
- Optional Wrapper element types. One of 'div'
, 'span'
or 'svg'
. Defaults to 'div'
.
Other non-documented properties are applied to the outermost wrapper element.
Example
<ReactSVG
afterInjection={(error, svg) => {
if (error) {
console.error(error)
return
}
console.log(svg)
}}
beforeInjection={(svg) => {
svg.classList.add('svg-class-name')
svg.setAttribute('style', 'width: 200px')
}}
className="wrapper-class-name"
evalScripts="always"
fallback={() => <span>Error!</span>}
httpRequestWithCredentials={true}
loading={() => <span>Loading</span>}
onClick={() => {
console.log('wrapper onClick')
}}
renumerateIRIElements={false}
src="svg.svg"
useRequestCache={false}
wrapper="span"
/>
Installation
⚠️This library depends on @tanem/svg-injector, which uses Array.from()
. If you're targeting browsers that don't support that method, you'll need to ensure an appropriate polyfill is included manually. See this issue comment for further detail.
$ npm install react-svg
There are also UMD builds available via unpkg:
For the non-minified development version, make sure you have already included:
For the minified production version, make sure you have already included:
FAQ
Why are there two wrapping elements?
This module delegates it's core behaviour to @tanem/svg-injector, which requires the presence of a parent node when swapping in the SVG element. The swapping in occurs outside of React flow, so we don't want React updates to conflict with the DOM nodes @tanem/svg-injector
is managing.
Example output, assuming a div
wrapper:
<div>
<div>
<svg>...</svg>
</div>
</div>
See:
Related issues and PRs:
How can I improve the accessibility of the rendered output?
Let's assume we want to add role
and aria-label
attributes to the outermost wrapper element, plus title
and desc
elements to the SVG.
Since non-documented properties are applied to the outermost wrapper element, and the beforeInjection
function allows us to modify the SVG DOM, we can do something like the following:
<ReactSVG
aria-label="Description of the overall image"
beforeInjection={(svg) => {
const desc = document.createElementNS(
'http://www.w3.org/2000/svg',
'desc'
)
desc.innerHTML = 'A description'
svg.prepend(desc)
const title = document.createElementNS(
'http://www.w3.org/2000/svg',
'title'
)
title.innerHTML = 'A title'
svg.prepend(title)
}}
role="img"
src="svg.svg"
/>
A live example is available here.
Related issue:
License
MIT