When comparing JSFiddle vs 30 seconds of code, the Slant community recommends 30 seconds of code for most people. In the question“What are the best resources to learn JavaScript?” 30 seconds of code is ranked 4th while JSFiddle is ranked 17th. The most important reason people chose 30 seconds of code is:
Main selling point of the project is that you can learn some useful techniques and tricks in 30 seconds or less.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro CoffeeScript and SCSS support
In addition to supporting JavaScript and CSS, language settings can be switched to CoffeeScript and SCSS.
Pro Allows collaborating on code
JSFiddle makes it easy to save the code snippets and send the link to others who can view and edit the code.
Pro Supports a wide variety of frameworks and extensions
JSFiddle can switch to selection of frameworks and extensions including jQuery, AngularJS, ReactiveJS, D3 simply from a dropdown.
Pro Short and sweet
Main selling point of the project is that you can learn some useful techniques and tricks in 30 seconds or less.
Pro Lots of examples
Over 300 code snippets.
Pro ES6
Uses the latest stable features of ES6 to teach developers how to write modern code.
Pro Functional-style code
The project's code examples follow best practices for functional programming.
Cons
Con Not actually an IDE
JSFiddle is not actually an IDE and is only suitable for small blocks of code.
Con Non free/libre (proprietary)
Con Not production-ready
A few of the code examples are not ready for production, but they can easily be made into production-ready methods with some tweaks. The library has a stable release as of August 2018.