Pop-up JavaScript challenges in your browser
Challenger is a drop-in JavaScript library that adds interactive programming challenges to any page. Challenges are flexible and expressive, and are super simple to write.
A challenge has requirements based on code structure and program output, and gives users a code editor to experiment in. When new code is written, it's run in a sandbox and the output is analyzed.
Challenges can be presented as one-off tests or linked together to form courses.
For full documentation including usage examples, visit the main project page.
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Multiple challenges in a row -
Custom rules -
Styling -
Code evaluation on the client - Code evaluation on the server
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Addsetupandteardownoptions to challenge objects -
Fix CodeMirror rendering in older versions of Firefox - Reduce the bundle size
Reducing bundle size important, as we're currently weighing in at ~2M. There's a lot of bloat from redundant dependencies - if anyone has experience with this I'd really appreciate a hand.
Tested with BrowserStack
- Chrome 18+
- Firefox 9+
- Opera 15+
- Safari 5.1+
- IE9+
- Mobile Safari
If you need to support older browsers, include krisowal's es5-shim along with es5-sham.js from the same repository. You might also need to tweak the CSS.