JavaScript scripts can be created in any text editor, ... To use the script on a webpage, use this HTML code: More For You. How to Make WordPress Quit Inserting Paragraph Tags.

In addition to executing code embedded in HTML, it's also possible to add a code editor directly into an HTML page using the py-repl tag so that you can input code and execute it, as shown below ...

Nashorn will define a new command-line tool, jjs, for evaluating JavaScript code in “shebang” scripts, here documents, and edit strings. Performance and memory usage of Nashorn applications ...

Don't panic that this JavaScript file isn't part of your application -- it's generated as part of building your app (if you turn on Show All Files in Solution Explorer and do a search, you'll find it) ...