What is css-stringify?
The css-stringify npm package is used to convert a CSS Abstract Syntax Tree (AST) into a CSS string. This is useful for scenarios where you need to programmatically generate or manipulate CSS styles and then convert them back into a string format for use in stylesheets or inline styles.
What are css-stringify's main functionalities?
Basic CSS Stringification
This feature allows you to convert a CSS AST into a CSS string. The example demonstrates how to create a simple AST for a CSS rule and then convert it into a string.
const stringify = require('css-stringify');
const ast = {
type: 'stylesheet',
stylesheet: {
rules: [
{
type: 'rule',
selectors: ['.example'],
declarations: [
{
type: 'declaration',
property: 'color',
value: 'red'
}
]
}
]
}
};
const cssString = stringify(ast);
console.log(cssString); // Outputs: .example {\n color: red;\n}
Handling Multiple Rules
This feature demonstrates how to handle multiple CSS rules within a single AST and convert them into a CSS string. The example shows two different CSS rules being stringified.
const stringify = require('css-stringify');
const ast = {
type: 'stylesheet',
stylesheet: {
rules: [
{
type: 'rule',
selectors: ['.example1'],
declarations: [
{
type: 'declaration',
property: 'color',
value: 'blue'
}
]
},
{
type: 'rule',
selectors: ['.example2'],
declarations: [
{
type: 'declaration',
property: 'background',
value: 'yellow'
}
]
}
]
}
};
const cssString = stringify(ast);
console.log(cssString); // Outputs: .example1 {\n color: blue;\n}\n.example2 {\n background: yellow;\n}
Other packages similar to css-stringify
css
The 'css' package is a CSS parser and stringifier. It provides more comprehensive functionality compared to css-stringify, including parsing CSS into an AST, manipulating the AST, and then stringifying it back into CSS. It is more feature-rich and can handle more complex CSS scenarios.
postcss
PostCSS is a tool for transforming CSS with JavaScript plugins. It includes capabilities for parsing CSS into an AST, manipulating the AST, and stringifying it back into CSS. PostCSS is highly extensible and is used in many modern CSS workflows for tasks like autoprefixing, linting, and minification.
csstree
CSSTree is a toolset for CSS including a fast detailed parser, walker, generator, lexer, and validator. It provides similar functionality to css-stringify but with additional features for detailed CSS analysis and manipulation. CSSTree is designed for performance and can handle large CSS files efficiently.
css-stringify
JavaScript CSS stringifier for Node.js (exports the stringify
method of css)
Installation
$ npm install css-stringify
Usage
Please see the css module documentation.
License
MIT