What are some alternatives?
Python - Python is a clear and powerful object-oriented programming language, comparable to Perl, Ruby, Scheme, or Java.
Plunker - Plunker is an online community for creating, collaborating on and sharing your web development ideas.
PHP - A popular general-purpose scripting language that is especially suited to web development
CodePen - A front end web development playground.
Java - A concurrent, class-based, object-oriented, language specifically designed to have as few implementation dependencies as possible