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babel-plugin-emotion

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babel-plugin-emotion

A recommended babel preprocessing plugin for emotion, The Next Generation of CSS-in-JS.


Version published
Maintainers
4
Weekly downloads
2,505,913
decreased by-22.25%

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Package description

What is babel-plugin-emotion?

The babel-plugin-emotion npm package is designed to enhance the development experience when using Emotion, a popular CSS-in-JS library. It provides optimizations and custom transformations for styles defined in JavaScript, enabling more efficient and powerful styling solutions in React applications. This plugin facilitates the use of Emotion by offering features such as source maps for easier debugging, auto-labeling for better readability of class names, and the optimization of styles for production.

What are babel-plugin-emotion's main functionalities?

Source Maps

Generates source maps for styles, improving the debugging process by allowing developers to trace back to the original location of a style definition within their code.

"use strict";

var _emotion = require("@emotion/core");

function App() {
  return /*#__PURE__*/_emotion.jsx("div", {
    css: {
      color: 'hotpink'
    }
  }, "Hello World");
}

Auto-labeling

Automatically adds labels to the generated class names based on the name of the variable or component. This enhances readability in the DOM and helps in identifying components during debugging.

"use strict";

var _emotion = require("@emotion/core");

var _styled = /*#__PURE__*/(0, _emotion.default)("div")
/*#__PURE__*/
.emotionLabel('MyComponent_styled_h1nx9f');

Optimization for Production

In production, the plugin optimizes the styles by compacting and efficient handling, reducing the size of the generated CSS and improving load times.

process.env.NODE_ENV === 'production' ? /*#__PURE__*/require('@emotion/css').css('label:MyComponent;', 'color:hotpink;') : /*#__PURE__*/require('@emotion/css').css('color:hotpink;');

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Last updated on 12 Nov 2020

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