Sass-cast NPM | npm.io

sass-cast

Convert Javascript objects to Sass objects and vice versa. Based on sassport and node-sass-utils, updated to work with newer sass versions and the modern Sass API.

Usage

toSass

Converts any Javascript object to an equivalent Sass value.

This method is recursive and will convert the values of any array or object, as well as the array or object itself.

Parameters

value any the value to be converted
options Object (optional, default {})
- options.parseUnquotedStrings boolean whether to parse unquoted strings for colors or numbers with units (optional, default false)
- options.resolveFunctions (boolean | Array\) if true, resolve functions and attempt to cast their return values. if an array, pass as arguments when resolving (optional, default false)
- options.quotes boolean controls whether returned SassStrings are quoted. input strings that contain quotes will always return a quoted SassString even if this flag is false. (optional, default true)

Examples

const { toSass } = require('sass-cast');

const string = toSass('a simple string');
// quoted SassString => '"a simple string"'

const map = toSass({
  key: 'value',
  nested: {
    'complex//:key': [ null, 4 ],
  }
});
// SassMap => '("key": "value", "nested": ("complex//:key": (null, 4)))'

Returns Value a Sass value

fromSass

Converts Sass values to their Javascript equivalents.

Parameters

object Value a Sass value
options Object (optional, default {})
- options.preserveUnits boolean By default, only the values of numbers are returned, not their units. If true, fromSass will return numbers as a two-item Array, i.e. [ value, unit ] (optional, default false)
- options.rgbColors boolean By default, colors are returned as strings. If true, fromSass will return colors as an object with r, g, b, and a, properties. (optional, default false)
- options.preserveQuotes boolean By default, quoted Sass strings return their inner text as a string. If true, fromSass will preserve the quotes in the returned string value. (optional, default false)

Examples

const { fromSass, toSass } = require('sass-cast');

const sassString = toSass('a sass string object');
const string = fromSass(sassString);
// 'a sass string object'

Returns any a Javascript value corresponding to the Sass input

sassFunctions

An object defining Sass utility functions.

Examples

Pass to sass using the JS API

const { sassFunctions } = require('sass-cast');
const sass = require('sass');

sass.compile('main.scss', { functions: sassFunctions });

require

Sass function for importing data from Javascript or JSON files. Calls the CommonJS require function under the hood.

Examples

// import config info from tailwindcss
$tw: require('./tailwind.config.js', $parseUnquotedStrings: true);
$tw-colors: map.get($tw, theme, extend, colors);

Parameters

$module SassString Path to the file or module. Relative paths are relative to the Node process running Sass compilation.
$properties SassList List of properties, if you only want to parse part of the module data. (optional, default ())
$parseUnquotedStrings SassBoolean Passed as an option to toSass. (optional, default false)
$resolveFunctions SassBoolean Passed as an option to toSass. (optional, default false)
$quotes SassBoolean Passed as an option to toSass. (optional, default true)

Returns Value a Sass value

legacy

Identical methods that interface with Sass's legacy Javascript API for older versions of Sass. Use require('sass-cast/legacy').

toSass

Converts any Javascript object to an equivalent legacy Sass object.

Parameters

value any the value to be converted
options Object (optional, default {})
- options.parseUnquotedStrings boolean whether to parse unquoted strings for colors or numbers with units (optional, default false)
- options.resolveFunctions (boolean | Array\) if true, resolve functions and attempt to cast their return values. if an array, pass as arguments when resolving (optional, default false)
- options.quotes (string | null) the type of quotes to use when quoting Sass strings (single or double) (optional, default "'")

Returns LegacyObject a legacy Sass object

fromSass

Converts legacy Sass objects to their Javascript equivalents.

Parameters

object LegacyObject a legacy Sass object
options Object (optional, default {})
- options.preserveUnits boolean By default, only the values of numbers are returned, not their units. If true, fromSass will return numbers as a two-item Array, i.e. [ value, unit ] (optional, default false)
- options.rgbColors boolean By default, colors are returned as strings. If true, fromSass will return colors as an object with r, g, b, and a, properties. (optional, default false)
- options.preserveQuotes boolean By default, quoted Sass strings return their inner text as a string. If true, fromSass will preserve the quotes in the returned string value. (optional, default false)