This is a
playground to test code. It runs a full
Node.js environment and already has all of
npm’s 400,000 packages pre-installed, including
codewars with all
npm packages installed. Try it out:
This service is provided by RunKit and is not affiliated with npm, Inc or the package authors.
codewars.com library and cli for retrieving, testing locally and attempting katas.
$ mkdir kata; cd kata $ codewars next // or kata_id instead $ ls README.md kata.js test.js $ codewars test // local testing Test Passed $ codewars attempt
next - retrieves the next kata. Places the stub into
kata.js, the test into
test.js and the description in the
<kata_id_or_slug> - same as
next, but by providing a specific kata id or slug
test - run the test.js with kata.js
test --watch or -w - will run the test, and watch for changes in the files; re-running the test when a file is updated
Stack-traces, or at least the line number and the character
of the failed code, are visible only in Node v0.11 and above. This
is due to the new displayErrors option of the
vm module, which is not available on older versions.
A pull-request is welcome for a way to run katas securely and have stack-traces on earlier versions of Node.