Check the actual type of an object
96459
Check if instance is of a type
127819
How to check whether an object is a date?
102698
Enforce type difference
5254
How to determine an object's class?
95466
How to determine the class of a generic type?
104735
Most efficient way to switch on SObjectType?
32673
How to determine a Python variable's type?
155510
Check if object is a jQuery object
62472
How to get the Runtime-Type of an Object dynamically (for Primitive Data Types and SObjects)
95798
Compare object instances for equality by their attributes
6282
How do I check if a string is a number (float)?
97444
How do I tell what type of value is in a Perl variable?
86651
How to determine if Javascript object is an event?
104574
Best way to test if a generic type is a string? (C#)
74576
How to know if an object has an attribute in Python
6288
How do I check if an object has a specific property in JavaScript?
134795
Get underlying/derived type of enum?