When trying to understand a program, or in some corner-cases, it’s useful to find out what type something is. I know the debugger can show you some type information, and you can usually rely on type inference to get away with not specifying the type in those situations, but still, I’d really like to have … Read more
I have an array that is made up of AnyObject. I want to iterate over it, and find all elements that are array instances. How can I check if an object is of a given type in Swift? 20 Answers 20
This question already has answers here: What are the differences between type() and isinstance()? (7 answers) Closed 9 years ago. I need to know if a variable in Python is a string or a dict. Is there anything wrong with the following code? if type(x) == type(str()): do_something_with_a_string(x) elif type(x) == type(dict()): do_somethting_with_a_dict(x) else: raise … Read more
In ActionScript, it is possible to check the type at run-time using the is operator: var mySprite:Sprite = new Sprite(); trace(mySprite is Sprite); // true trace(mySprite is DisplayObject);// true trace(mySprite is IEventDispatcher); // true Is it possible to detect if a variable (extends or) is a certain class or interface with TypeScript? I couldn’t find … Read more
