Run Coffeescript Interactive (REPL) with a script

Question

In python, I can run a script and enter interactive mode in the context of that script. This lets me mess with global variables and what not to examine program state.

$ python -i hello.py

Can I do this with Coffeescript? I've tried the following:

$ coffee -i hello.coffee

doesn't load hello.coffee. It's equivalent to coffee -i

$ cat hello.coffee | coffee -i

runs the script line by line in REPL but ends REPL after the EOF.

From stackoverflow.com/a/13386057/149330: Use cat hello.coffee - | coffee — int3
Its no t exactly what you're looking for, but how about just writing it as a module and then use require to load it in the normal repl mode? — mzedeler
This is the only real reason for not using coffeescript imo. one needs to be able to invoke the coffeescript repl from a script. you can use source maps n stuff but its a bit awkward — Adam Spence

Daniel Daniel · Accepted Answer · 2013-04-04T04:11:35

I've recently started a project to create an advanced interactive shell for Node and associated languages like CoffeeScript. One of the features is loading a file or string in the context of the interpreter at startup which takes into account the loaded language.

http://danielgtaylor.github.com/nesh/

Example:

# Load a string
nesh -c -e 'hello = (name) -> "Hello, #{name}"'

# Load a file
nesh -c -e hello.coffee

Then in the interpreter you can access the hello function. Also a good idea to create an alias in bash:

alias cs='nesh -c'

Run Coffeescript Interactive (REPL) with a script

3 Answers