Equivalent of Python's dir in Javascript

Question

when I write Python code from the interpreter I can type dir() to have a list of names defined in the current scope. How can achieve to have the same informatio

Answer 1

There is "keys" method in Object, for example:

Object.keys(object)

But this return object's own properties and methods only.
To list all properties and methods of an object I know 2 possibilities:
1. console.dir(object) method in firebug console for Firefox and
2. dir(object) method in Google Chrome development tools.