Is there a manual for JavaScriptCore shell (jsc)?
Solution 1:
There isn't much to the documentation. It's merely a framework allowing you to run JavaScript from Swift, Objective-C and C based apps.
From Apple Developer:
The JavaScriptCore Framework provides the ability to evaluate JavaScript programs from within Swift, Objective-C, and C-based apps. You can use also use JavaScriptCore to insert custom objects to the JavaScript environment.
The functions that are supported are referenced here