Test projects give you a way to exercise your code to see if it works but they're also part of your project's 'permanent record.' If all you want to do is try something out with some throwaway code, C ...

Adobe plans to open the source code for the scripting engine in the Flash Player, which will be incorporated into a new Mozilla open-source project called Tamarin.

Girls Who Code is an international program that helps introduce elementary-aged girls and older to the language of coding.