js--js-funcall

js--js-funcall is a compiled Lisp function in `js.el'.

(js--js-funcall FUNCTION &rest ARGUMENTS)

Call the Mozilla function FUNCTION with arguments ARGUMENTS.
If function is a string, look it up as a property on the global
object and use the global object for `this'.
If FUNCTION is a list with one element, use that element as the
function with the global object for `this', except that if that
single element is a string, look it up on the global object.
If FUNCTION is a list with more than one argument, use the list
up to the last value as a property descriptor and the last
argument as a function.