JS Tutorial

Java Script tutorial

I found what looks to be a pretty comprehensive tutorial for JavaScript on the tutorials point website.  There is a link to the pdf below.  Hopefully this is useful.

https://www.tutorialspoint.com/javascript/javascript_tutorial.pdf

Further to this there is also

https://www.w3schools.com/Js/

Repl.it has support for JavaScript and you can create dynamic and interactive websites within the browser IDE.