# clean-css-promise [![NPM version](https://img.shields.io/npm/v/clean-css-promise.svg)](https://www.npmjs.com/package/clean-css-promise) [![Build Status](https://travis-ci.org/shinnn/clean-css-promise.svg?branch=master)](https://travis-ci.org/shinnn/clean-css-promise) [![Coverage Status](https://img.shields.io/coveralls/shinnn/clean-css-promise.svg)](https://coveralls.io/github/shinnn/clean-css-promise?branch=master) [![Dependency Status](https://david-dm.org/shinnn/clean-css-promise.svg)](https://david-dm.org/shinnn/clean-css-promise) [![Dependency Status](https://david-dm.org/shinnn/clean-css-promise.svg)](https://david-dm.org/shinnn/clean-css-promise) [Promises/A+](https://promisesaplus.com/) version of [clean-css](https://github.com/jakubpawlowicz/clean-css) ```javascript const CleanCssPromise = require('clean-css-promise'); new CleanCssPromise() .minify('p { margin: 1px 1px 1px 1px; }') .then(result => console.log(result.styles)) //=> 'p{margin:1px}' ``` ## Installation [Use npm.](https://docs.npmjs.com/cli/install) ``` npm install clean-css-promise ``` ## API ```javascript const CleanCssPromise = require('clean-css-promise'); ``` ### CleanCssPromise([*options*]) [clean-css-api]: https://github.com/jakubpawlowicz/clean-css#how-to-use-clean-css-api *options*: `Object` (clean-css [options][clean-css-api]) Return: `Object` (clean-css instance) It has the same API as [clean-css's][clean-css-api], except for: * `.minify()` method is [promisified](https://promise-nuggets.github.io/articles/07-wrapping-callback-functions.html). * The error passed to [*onRejected*](https://promisesaplus.com/#point-30) function is modified with [array-to-error](https://github.com/shinnn/array-to-error). ```javascript const CleanCssPromise = require('clean-css-promise'); new CleanCssPromise({}) .minify('@import /foo;@import /bar;') .catch(err => { console.error(err.message); //=> 'Broken @import declaration of "/foo"\nBroken @import declaration of "/bar"' }); ``` ## License Copyright (c) 2015 [Shinnosuke Watanabe](https://github.com/shinnn) Licensed under [the MIT License](./LICENSE).