# Options ## separator Type: `String` Default: linefeed Concatenated files will be joined on this string. ## bare Type: `boolean` Compile the JavaScript without the top-level function safety wrapper. ## join Type: `boolean` Default: `false` When compiling multiple .coffee files into a single .js file, concatenate first. ## sourceMap Type: `boolean` Default: `false` Compile JavaScript and create a .map file linking it to the CoffeeScript source. When compiling multiple .coffee files to a single .js file, concatenation occurs as though the 'join' option is enabled. The concatenated CoffeeScript is written into the output directory, and becomes the target for source mapping.