How to save a Java script file ???

Answer 1

After creating
Pres
_____
_____
_____

It will show
Save the file as
The keep a name for the file
And go check it in your code bits

Answer 2

In sololearn

Go to code bits secton on bottom bar
Choose web

>html>script tag
Or
>js
And save by clicking on three dot and click on save