python 3: how to check if an object is a function?
37773
How do I detect whether a Python variable is a function?
1727
How to determine function name from inside a function
58513
Is everything an object in Python like Ruby?
32673
How to determine a Python variable's type?
601
How do I test for an empty JavaScript object?
64597
How to get a JavaScript object's class?
86651
How to determine if Javascript object is an event?
83782
How to check a not-defined variable in JavaScript
93047
How to check whether a variable is a class or not?
46686
How to get a functions's body as string?
127819
How to check whether an object is a date?
19249
Type Checking: typeof, GetType, or is?
158565
Determine if a function exists in bash
76210
What does it mean if a Python object is "subscriptable" or not?
25477
What is "function*" in JavaScript?
30961
How can I type-check the arguments of a Mathematica function?
91315
How can I make console.log show the current state of an object?