Find out what kind of object a thing is in Javascript/Coffeescript when foo.prototype is undefined?
29973
Get the name of an object's type
148248
Check if object is Class type
26674
Is there any way other than instanceof operator for object type comparison in java?
156912
Define a function with a prototype chain
141197
In JavaScript, is there an easier way to check if a property of a property exists?
62472
How to get the Runtime-Type of an Object dynamically (for Primitive Data Types and SObjects)
155348
Is there a good way to inspect objects whose type is derived from the EntityDrupalWrapper class?
8195
How do I make a callable JS object with an arbitrary prototype?
141488
What does prototype mean here in the jQuery source code?
132096
How do you check if a JavaScript Object is a DOM Object?
127452
Why is typeof null "object"?
1967
How does JavaScript .prototype work?
104459
How do I check if an object's type is a particular subclass in C++?
69703
"this" keyword in event methods when using JavaScript prototype object
113905
How can I check whether a variable is defined in JavaScript?
19714
Does some JavaScript library use dynamic aspects of the prototype system?
37735
How can I check for "undefined" in JavaScript?