svgr VS svgo

Really interesting framework agnostic approach, but I think SVGR is a better option for my React homies. It imports an SVG file as a React component. Shouts also to react-icons if Font Awesome, Material Icons and friends are more your bag.

SVGR

There is another way to import an SVG in Create React App, though. We can import the SVG as a ReactComponent. This is because CRA leverages SVGR to process SVGs.

const { types } = require('@babel/core'); module.exports = { ... template: function svgrCustomTemplate( { imports, interfaces, componentName, props, jsx, exports }, { tpl } ) { // меняем корневой элемент на SvgIcon jsx.openingElement.name.name = 'SvgIcon'; jsx.closingElement.name.name = 'SvgIcon'; // https://github.com/gregberge/svgr/issues/530 // при изменении корневого элемента пропадает спред пропсов // поэтому необходимо добавить спред пропсов самостоятельно jsx.openingElement.attributes.push( types.jSXSpreadAttribute(types.identifier('props')) ); return tpl` ${imports}; import { SvgIcon } from '../SvgIcon'; ${interfaces}; const ${componentName} = (${props}) => ( ${jsx} ); ${exports}; ` } }

To solve these problems and have a better development workflow, I have created a package called cl-djula-svg which automates all the above steps for you. The inspiration for this package came from svgr which exactly does the same thing in React applications. It takes a SVG file, process some override logic, optimize it and create React wrapper components based on the SVG content.

I normally use SVGR but every time a designer sends me an svg i’ll pass it in svgOmg that deletes all the unnecessary attributes and propietary code from figma, illustrator &co.

https://github.com/gregberge/svgr/issues/362 this may help as well.

If you're using Webpack, CRA, or Next.js, you should be using SVGR.

SVGR is the library that powers this ability. Setting it up could be a little hairy, thankfully many popular frameworks (Create React App, Gatsby) support this feature out of the box.

Look at software you use and identify underlying libraries.

SVGO https://github.com/svg/svgo is used by many graphics software but hasn't seen donations commensurate with usage https://opencollective.com/svgo

There are still a lot of things cl-djula-svg is capable of doing. For the immediate future, I am looking at adding optimization capabilities something like what svgo is doing for svgr. If you know anything else needs to be done to improve the package, please open an issue in the repository.

Writing/patching JS/TS-based CLI tools like Prettier or SVGO

svgomg is just a web frontend for svgo. You can run it locally on the command line.

Often, you can considerably reduce the file size of an SVG text file without a noticeable reduction in perceptual quality just by reducing the precision of the coordinates.

The awesome SVG Optimizer [1] has a filter (cleanupNumericValues) to process SVG files to a fixed precision.

The equally awesome SVG Optimizer Missing Gui (SVGOMG) [2] provides a web-based GUI [3] to interactively adjust precision and see the resulting render (and file-size).

[1] https://github.com/svg/svgo

There is a great tool that can optimize an SVG, and it's open-source. It's called SVGO. It also has an interface where you can upload your SVG, toggle some buttons, and check the results in real time. However, beware that some options might change the SVG and lead to undesired changes.

There are a hundred of tools bases in the SVGO Project but for me this website has the best compression is really simple and useful to compress SVGs in seconds. The problem is that does not allow compressing multiple SVGs at the same time and is not going to happen in the future.

For SVG's, we can use the svgo parser, which optimizes the SVG code and outputs a minified result. The default svgo settings are pretty good, but we add removeDimensions to make them responsive and replace the hard coded colors with "currentColor" such that we can color them with React Native styles.