@emotion/cache

What is @emotion/cache?

The @emotion/cache package is part of the Emotion library, a powerful tool for writing css styles with JavaScript. It is specifically designed to create custom instances of Emotion's cache, which can be useful for configuring how styles are processed, inserted, and optimized. This can be particularly beneficial in environments with specific styling needs or when integrating with complex applications.

What are @emotion/cache's main functionalities?

Custom Cache Creation

This feature allows the creation of a custom cache with a specified key prefix. This is useful for isolating styles in large applications or when using multiple emotion instances on the same page.

import createCache from '@emotion/cache';

const myCache = createCache({ key: 'my-prefix' });

Configuring Cache Options

This feature enables the configuration of the cache with specific options like stylis plugins and whether to prepend the styles. It allows for fine-tuning how styles are processed and inserted into the DOM.

import createCache from '@emotion/cache';

const myCache = createCache({
  key: 'custom',
  stylisPlugins: [],
  prepend: true
});

Other packages similar to @emotion/cache

styled-components

Styled-components is another CSS-in-JS library that allows you to use tagged template literals to style your components. It creates scoped styles without the need for manual cache management, which differs from @emotion/cache where you can configure and manage your own cache.

jss

JSS (JavaScript Style Sheets) is a CSS-in-JS library that allows for similar customization and optimization of style sheets. JSS provides a more extensive API for managing rules and stylesheets programmatically, which can be seen as more flexible compared to the focused cache management approach of @emotion/cache.