How does DevTools determine an object's constructor's name?

Question

I\'m using Chrome v22.0.1229.94 m, not that it should matter, but just in case :-)

Portability is of no concern to me. As long as it works with Chrome (and Safa

Answer 1

V8 can perform function name inference at the parsing stage, exposing this information via its APIs. You will not be able to extract this info using the normal object properties.

Answer 2

In the case for foo, you're creating a function expression. That means, you're assigning an anonymous function to a variable.

You can't resolve the function name programatically like that, unless you give the function a name and create a "named function expression".

var foo = function foo() {
  ...
}