Readme seems to be wrong?

[callumlocke]

How to use clean-css programmatically?

var CleanCSS = require('clean-css');
var source = 'a{font-weight:bold;}';
var minimized = new CleanCSS().minify(source).styles;

This gives me undefined. When I remove the .styles, it works.

[jakubpawlowicz]

@callumlocke I guess you use clean-css 2.x as API changed in 3.x - https://github.com/jakubpawlowicz/clean-css#how-to-upgrade-clean-css-from-2x-to-3x

[callumlocke]

I did npm install clean-css as per the readme, so I should have whatever the latest published version is. Is v3 not published?

[jakubpawlowicz]

3.0.2 is the latest published version. What clean-css -v says?

[callumlocke]

I did npm install clean-css this morning, and it gave me 2.2.23.

Also ran npm info clean-css... It shows that some 3.x versions do exist, but it says the "latest" is 2.2.23. I don't know why that would be, I've never encountered that before.

$ npm info clean-css
npm http GET https://registry.npmjs.org/clean-css
npm http 304 https://registry.npmjs.org/clean-css

{ name: 'clean-css',
  description: 'A well-tested CSS minifier',
  'dist-tags': { latest: '2.2.23' },
  versions:
   [ '0.1.0',
     '0.2.0',
     '0.2.1',
     '0.2.2',
     '0.2.3',
     '0.2.4',
     '0.2.5',
     '0.2.6',
     '0.3.0',
     '0.3.1',
     '0.3.2',
     '0.3.3',
     '0.4.0',
     '0.4.1',
     '0.4.2',
     '0.5.0',
     '0.6.0',
     '0.7.0',
     '0.8.0',
     '0.8.1',
     '0.8.2',
     '0.8.3',
     '0.9.0',
     '0.9.1',
     '0.10.0',
     '0.10.1',
     '0.10.2',
     '1.0.0',
     '1.0.1',
     '1.0.2',
     '1.0.3',
     '1.0.4',
     '1.0.5',
     '1.0.6',
     '1.0.7',
     '1.0.8',
     '1.0.9',
     '1.0.10',
     '1.0.11',
     '1.0.12',
     '1.1.0',
     '1.1.1',
     '1.1.2',
     '1.1.3',
     '1.1.4',
     '1.1.5',
     '1.1.6',
     '1.1.7',
     '2.0.0',
     '2.0.1',
     '2.0.2',
     '2.0.3',
     '2.0.4',
     '2.0.5',
     '2.0.6',
     '2.0.7',
     '2.0.8',
     '2.1.0',
     '2.1.1',
     '2.1.2',
     '2.1.3',
     '2.1.4',
     '2.1.5',
     '2.1.6',
     '2.1.7',
     '2.1.8',
     '2.2.0',
     '2.2.1',
     '2.2.2',
     '2.2.3',
     '2.2.4',
     '2.2.5',
     '2.2.6',
     '2.2.7',
     '2.2.8',
     '2.2.9',
     '2.2.10',
     '2.2.11',
     '2.2.12',
     '2.2.13',
     '2.2.14',
     '2.2.15',
     '2.2.16',
     '2.2.17',
     '2.2.18',
     '2.2.19',
     '2.2.20',
     '2.2.21',
     '2.2.22',
     '2.2.23',
     '3.0.0',
     '3.0.1',
     '3.0.2' ],
  maintainers: 'goalsmashers <jakub@goalsmashers.com>',
  time:
   { modified: '2015-01-04T10:59:02.073Z',
     created: '2011-02-28T19:38:45.669Z',
     '0.1.0': '2011-02-28T19:38:46.238Z',
     '0.2.0': '2011-03-02T21:05:01.592Z',
     '0.2.1': '2011-03-20T18:50:12.374Z',
     '0.2.2': '2011-04-17T14:53:52.090Z',
     '0.2.3': '2011-04-18T07:39:35.264Z',
     '0.2.4': '2011-05-25T17:53:53.749Z',
     '0.2.5': '2011-11-27T09:13:16.219Z',
     '0.2.6': '2011-11-27T15:05:38.304Z',
     '0.3.0': '2011-11-29T13:07:17.279Z',
     '0.3.1': '2011-12-16T20:57:31.973Z',
     '0.3.2': '2012-01-17T20:08:35.060Z',
     '0.3.3': '2012-05-27T17:45:06.608Z',
     '0.4.0': '2012-06-04T13:18:57.627Z',
     '0.4.1': '2012-06-10T20:58:40.646Z',
     '0.4.2': '2012-06-28T20:50:48.336Z',
     '0.5.0': '2012-08-02T20:58:52.375Z',
     '0.6.0': '2012-08-05T20:40:36.334Z',
     '0.7.0': '2012-10-14T20:17:20.894Z',
     '0.8.0': '2012-10-21T10:41:39.387Z',
     '0.8.1': '2012-10-28T15:02:24.907Z',
     '0.8.2': '2012-10-31T21:54:01.790Z',
     '0.8.3': '2012-11-29T22:32:21.265Z',
     '0.9.0': '2012-12-15T22:44:33.084Z',
     '0.9.1': '2012-12-19T21:08:31.016Z',
     '0.10.0': '2013-02-09T16:25:15.119Z',
     '0.10.1': '2013-02-14T21:34:05.711Z',
     '0.10.2': '2013-03-19T20:31:33.357Z',
     '1.0.0': '2013-03-30T17:54:23.743Z',
     '1.0.1': '2013-04-08T06:30:47.764Z',
     '1.0.2': '2013-04-29T20:32:01.299Z',
     '1.0.3': '2013-05-20T18:08:38.756Z',
     '1.0.4': '2013-05-23T18:10:51.912Z',
     '1.0.5': '2013-05-27T21:43:15.247Z',
     '1.0.6': '2013-06-04T18:24:09.803Z',
     '1.0.7': '2013-06-05T18:25:43.908Z',
     '1.0.8': '2013-06-10T12:20:34.767Z',
     '1.0.9': '2013-06-11T11:10:34.822Z',
     '1.0.10': '2013-06-13T19:14:33.963Z',
     '1.0.11': '2013-07-08T14:27:07.987Z',
     '1.0.12': '2013-07-19T16:08:40.289Z',
     '1.1.0': '2013-09-06T08:20:49.871Z',
     '1.1.1': '2013-09-06T22:13:28.467Z',
     '1.1.2': '2013-09-29T11:06:51.455Z',
     '1.1.3': '2013-10-04T08:15:04.751Z',
     '1.1.4': '2013-10-23T14:23:01.379Z',
     '1.1.5': '2013-10-24T16:21:59.578Z',
     '1.1.6': '2013-10-26T09:16:32.622Z',
     '1.1.7': '2013-10-28T21:22:17.763Z',
     '2.0.0': '2013-11-04T13:32:52.782Z',
     '2.0.1': '2013-11-14T08:38:59.328Z',
     '2.0.2': '2013-11-18T21:35:07.288Z',
     '2.0.3': '2013-12-18T22:08:33.295Z',
     '2.0.4': '2013-12-19T14:40:01.676Z',
     '2.0.5': '2014-01-03T11:11:14.171Z',
     '2.0.6': '2014-01-04T16:02:19.443Z',
     '2.0.7': '2014-01-16T22:31:17.040Z',
     '2.0.8': '2014-02-07T21:09:43.288Z',
     '2.1.0': '2014-02-13T22:54:34.925Z',
     '2.1.1': '2014-02-19T08:09:55.708Z',
     '2.1.2': '2014-02-25T21:04:39.543Z',
     '2.1.3': '2014-02-26T21:05:49.779Z',
     '2.1.4': '2014-03-01T23:33:57.506Z',
     '2.1.5': '2014-03-07T20:47:20.465Z',
     '2.1.6': '2014-03-10T07:54:17.516Z',
     '2.1.7': '2014-03-24T20:44:25.968Z',
     '2.1.8': '2014-03-28T19:02:31.320Z',
     '2.2.0': '2014-06-11T21:26:48.888Z',
     '2.2.1': '2014-06-14T08:33:01.688Z',
     '2.2.2': '2014-06-18T21:50:27.777Z',
     '2.2.3': '2014-06-24T21:28:25.515Z',
     '2.2.4': '2014-06-27T22:09:48.464Z',
     '2.2.5': '2014-06-29T22:28:15.805Z',
     '2.2.6': '2014-07-05T13:58:32.497Z',
     '2.2.7': '2014-07-10T22:04:44.388Z',
     '2.2.8': '2014-07-14T21:46:41.706Z',
     '2.2.9': '2014-07-23T22:42:01.562Z',
     '2.2.10': '2014-07-27T13:29:20.751Z',
     '2.2.11': '2014-07-28T21:41:48.979Z',
     '2.2.12': '2014-08-02T10:38:36.229Z',
     '2.2.13': '2014-08-12T21:36:28.333Z',
     '2.2.14': '2014-08-25T14:11:37.768Z',
     '2.2.15': '2014-08-31T22:58:54.997Z',
     '2.2.16': '2014-09-16T20:16:38.624Z',
     '2.2.17': '2014-11-09T16:57:49.823Z',
     '2.2.18': '2014-11-17T20:16:09.799Z',
     '2.2.19': '2014-11-20T23:20:23.599Z',
     '2.2.20': '2014-12-02T21:21:56.521Z',
     '2.2.21': '2014-12-10T22:58:19.977Z',
     '2.2.22': '2014-12-13T10:57:47.894Z',
     '3.0.0': '2014-12-18T23:07:10.073Z',
     '3.0.1': '2014-12-19T21:10:27.340Z',
     '3.0.2': '2015-01-04T10:51:16.440Z',
     '2.2.23': '2015-01-04T10:59:02.073Z' },
  author: 'Jakub Pawlowicz <jakub@goalsmashers.com> (http://twitter.com/GoalSmashers)',
  repository:
   { type: 'git',
     url: 'https://github.com/GoalSmashers/clean-css.git' },
  users:
   { fgribreau: true,
     hughsk: true,
     dpobel: true,
     chilts: true,
     adamrenny: true,
     fox: true,
     sweetfancymoses: true,
     drahcir: true,
     varghju: true,
     wenbing: true,
     reekdeb: true,
     cedx: true,
     binnng: true,
     feryardiant: true,
     lufei: true,
     zhangyaochun: true,
     flip4bytes: true,
     chzhewl: true,
     beardwierd: true },
  readmeFilename: 'README.md',
  homepage: 'https://github.com/GoalSmashers/clean-css',
  keywords: [ 'css', 'minifier' ],
  bugs: { url: 'https://github.com/GoalSmashers/clean-css/issues' },
  license: 'MIT',
  version: '2.2.23',
  bin: { cleancss: './bin/cleancss' },
  main: 'index.js',
  files:
   [ 'bin',
     'lib',
     'History.md',
     'index.js',
     'LICENSE' ],
  scripts:
   { browserify: 'browserify --standalone CleanCSS index.js | uglifyjs --compress --mangle -o cleancss-browser.js',
     bench: 'node ./test/bench.js',
     check: 'jshint ./bin/cleancss .',
     prepublish: 'jshint .',
     test: 'vows' },
  dependencies: { commander: '2.2.x' },
  devDependencies:
   { browserify: '4.x',
     jshint: '2.5.x',
     nock: '0.28.x',
     'uglify-js': '2.4.x',
     vows: '0.7.x' },
  engines: { node: '>=0.8.0' },
  gitHead: 'a5bc953e47933745f3f5a9179dbfd60a9b7945b1',
  dist:
   { shasum: '0590b5478b516c4903edc2d89bd3fdbdd286328c',
     tarball: 'http://registry.npmjs.org/clean-css/-/clean-css-2.2.23.tgz' },
  directories: {} }

[jakubpawlowicz]

It seems like a npm issue worth reporting. I've just pushed 3.0.3 and it gets installed by npm as the latest now.

[jakubpawlowicz]

Ok, we it's a known issue - npm/npm#6778

[jakubpawlowicz]

Please reopen unless fixed.