Pros of emotion

• Simpler API and easier learning curve
• Better performance due to optimized runtime
• Stronger TypeScript support out of the box

Cons of emotion

• Less flexible than JSS for complex use cases
• Smaller ecosystem and fewer plugins available
• Limited server-side rendering capabilities compared to JSS

Code Comparison

emotion:

import { css } from '@emotion/react'

const style = css`
  color: hotpink;
`

const SomeComponent = ({ children }) => (
  <div css={style}>{children}</div>
)

JSS:

import { createUseStyles } from 'react-jss'

const useStyles = createUseStyles({
  myButton: {
    color: 'hotpink',
  },
})

const SomeComponent = ({ children }) => {
  const classes = useStyles()
  return <div className={classes.myButton}>{children}</div>
}

Both emotion and JSS are popular CSS-in-JS libraries, each with its own strengths. emotion offers a more straightforward API and better performance, making it easier for beginners to adopt. It also provides robust TypeScript support. However, JSS offers more flexibility for complex styling scenarios and has a larger ecosystem with more plugins. JSS also has better server-side rendering capabilities. The code comparison shows the difference in syntax between the two libraries, with emotion using a tagged template literal approach and JSS using a more object-oriented style.

Pros of styled-components

• More intuitive syntax for React developers, using tagged template literals
• Better integration with React components, including prop-based styling
• Automatic critical CSS extraction and vendor prefixing

Cons of styled-components

• Larger bundle size compared to JSS
• Steeper learning curve for developers new to CSS-in-JS
• Limited support for global styles and keyframes

Code Comparison

styled-components:

const Button = styled.button`
  background-color: ${props => props.primary ? 'blue' : 'white'};
  color: ${props => props.primary ? 'white' : 'blue'};
  padding: 10px 20px;
`;

JSS:

const styles = {
  button: {
    backgroundColor: props => props.primary ? 'blue' : 'white',
    color: props => props.primary ? 'white' : 'blue',
    padding: '10px 20px',
  },
};

Both styled-components and JSS are popular CSS-in-JS solutions, each with its own strengths. styled-components offers a more React-centric approach with its component-based styling, while JSS provides a more flexible and lightweight option. The choice between the two often depends on project requirements, team preferences, and performance considerations.

Pros of CSS Modules

• Simpler syntax, closer to traditional CSS
• Better compatibility with existing CSS tooling and workflows
• Easier to integrate into existing projects without major refactoring

Cons of CSS Modules

• Less dynamic, can't easily change styles based on props or state
• Limited runtime manipulation of styles
• Requires additional build step or tooling for full functionality

Code Comparison

CSS Modules:

.button {
  background: blue;
  color: white;
}

import styles from './Button.css';

const Button = () => <button className={styles.button}>Click me</button>;

JSS:

const styles = {
  button: {
    background: 'blue',
    color: 'white',
  },
};

const Button = () => <button className={classes.button}>Click me</button>;

CSS Modules offers a more familiar CSS-like syntax and easier integration with existing projects, but lacks the dynamic capabilities of JSS. JSS provides more flexibility for runtime style manipulation and prop-based styling but requires learning a new syntax and may be overkill for simpler projects. The choice between the two often depends on project requirements and team preferences.

Pros of Styletron

• Better performance due to atomic CSS generation and deduplication
• Smaller CSS output size, especially for large applications
• Built-in support for server-side rendering

Cons of Styletron

• Less intuitive syntax compared to JSS's object-based approach
• Limited support for global styles and keyframes
• Steeper learning curve for developers familiar with traditional CSS

Code Comparison

JSS:

const styles = {
  button: {
    backgroundColor: 'blue',
    color: 'white',
    padding: '10px 20px',
    '&:hover': {
      backgroundColor: 'darkblue'
    }
  }
};

Styletron:

const button = styletron.useStyletron({
  backgroundColor: 'blue',
  color: 'white',
  padding: '10px 20px',
  ':hover': {
    backgroundColor: 'darkblue'
  }
});

Both JSS and Styletron are CSS-in-JS solutions, but they differ in their approach and features. JSS offers a more familiar object-based syntax and better support for global styles, while Styletron focuses on performance and atomic CSS generation. The choice between the two depends on project requirements, team preferences, and performance considerations.

Pros of Linaria

• Zero runtime CSS-in-JS with static extraction
• Better performance due to compile-time CSS generation
• Supports critical CSS extraction for improved loading times

Cons of Linaria

• Less dynamic styling capabilities compared to JSS
• Steeper learning curve for developers used to traditional CSS
• Limited runtime style modifications

Code Comparison

Linaria:

import { css } from 'linaria';

const button = css`
  background: blue;
  color: white;
`;

JSS:

import { createUseStyles } from 'react-jss';

const useStyles = createUseStyles({
  button: {
    background: 'blue',
    color: 'white',
  },
});

Linaria focuses on static CSS extraction at build time, resulting in zero runtime overhead and improved performance. It generates plain CSS files, which can be beneficial for SEO and initial page load times. However, this approach limits dynamic styling capabilities compared to JSS.

JSS, on the other hand, offers more flexibility for runtime style modifications and dynamic theming. It has a lower learning curve for developers familiar with CSS-in-JS concepts but may have a slight performance overhead due to its runtime nature.

Both libraries provide solutions for writing CSS in JavaScript, but they cater to different use cases and development preferences. Linaria is ideal for projects prioritizing performance and static styling, while JSS is better suited for applications requiring more dynamic and flexible styling options.