-c, --compile |
Compile a .coffee script into a .js JavaScript file of the same name. |
-t, --transpile |
Pipe the CoffeeScript compiler’s output through Babel before saving or running the generated JavaScript. Requires @babel/core to be installed, and options to pass to Babel in a .babelrc file or a package.json with a babel key in the path of the file or folder to be compiled. See Transpilation. |
-m, --map |
Generate source maps alongside the compiled JavaScript files. Adds sourceMappingURL directives to the JavaScript as well. |
-M, --inline-map |
Just like --map, but include the source map directly in the compiled JavaScript files, rather than in a separate file. |
-i, --interactive |
Launch an interactive CoffeeScript session to try short snippets. Identical to calling coffee with no arguments. |
-o, --output [DIR] |
Write out all compiled JavaScript files into the specified directory. Use in conjunction with --compile or --watch. |
-w, --watch |
Watch files for changes, rerunning the specified command when any file is updated. |
-p, --print |
Instead of writing out the JavaScript as a file, print it directly to stdout. |
-s, --stdio |
Pipe in CoffeeScript to STDIN and get back JavaScript over STDOUT. Good for use with processes written in other languages. An example:
cat src/cake.coffee | coffee -sc |
-l, --literate |
Parses the code as Literate CoffeeScript. You only need to specify this when passing in code directly over stdio, or using some sort of extension-less file name. |
-e, --eval |
Compile and print a little snippet of CoffeeScript directly from the command line. For example:
coffee -e "console.log num for num in [10..1]" |
-r, --require [MODULE] |
require() the given module before starting the REPL or evaluating the code given with the --eval flag. |
-b, --bare |
Compile the JavaScript without the top-level function safety wrapper. |
--no-header |
Suppress the “Generated by CoffeeScript” header. |
--nodejs |
The node executable has some useful options you can set, such as --debug, --debug-brk, --max-stack-size, and --expose-gc. Use this flag to forward options directly to Node.js. To pass multiple flags, use --nodejs multiple times. |
--ast |
Generate an abstract syntax tree of nodes of the CoffeeScript. Used for integrating with JavaScript build tools. |
--tokens |
Instead of parsing the CoffeeScript, just lex it, and print out the token stream. Used for debugging the compiler. |
-n, --nodes |
Instead of compiling the CoffeeScript, just lex and parse it, and print out the parse tree. Used for debugging the compiler. |
