import * as UglifyCSS from 'uglifycss'; var test1 = UglifyCSS.processString('some css string'); var test2 = UglifyCSS.processString('some css string', { maxLineLen: 0, expandVars: true, uglyComments: true, cuteComments: true }); var test3 = UglifyCSS.processFiles(['/path/to/file']); var test4 = UglifyCSS.processFiles(['/path/to/file'], { maxLineLen: 0, cuteComments: true });