List all built-in functions in javascript?

Question

Is there a way in js to list all the built-in functions and some information about their parameter lists? I could not find anything that could be reflected in this matter.

edit: Functions like Math.sin are actually the ones I want to list, in fact all the built-in functions.

Answer 1

Something like this, maybe?

for( var x in window) { if( window[x] instanceof Function) console.log(x); } 

All built-in functions in the console are listed here (excluding one of the built-in objects, for example Math.sin() ).