typeof

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how to tell if a javascript variable is a function

I need to loop over the properties of a javascript object.How can I tell if a property is a function or just a value?[详细]

2023-03-02 13:59 分类：问答
What's the point of new String("x") in JavaScript?

What are the use cases 开发者_如何学运维for doing new String(\"already a string\")? What\'s the whole point of it?There\'s very little practical use for String objects as created by new String(\"foo\[详细]

2023-02-28 04:14 分类：问答
C++0x decltype and the scope resolution operator

With a class such as Foo: struct Foo { static const int i = 9; }; 开发者_如何学Go I find that GCC 4.5 will reject the following[详细]

2023-02-21 21:01 分类：问答
Is it worth saving the result of the typeof() call for multiple uses?

If I am to use the result of the C# typeof call on the开发者_如何学编程 same type, is it worth saving the value, or just call typeof() multiple times. To me, multiple typeof\'s are preferable as it ca[详细]

2023-02-15 10:21 分类：问答
Can this type checks with "object" be improved?

if (typeof a !== \"object\" && typeof b !== \"object\") { return a == b; } ... // check pairwise equality of object a & b using `for in`[详细]

2023-02-11 12:55 分类：问答
Write a typeof procedure in Scheme

Help me answer the following question appears in Simply Scheme 6.7Write a procedure type-of that takes anything as its argument an开发者_运维百科d returns one of the words word, sentence, number, or[详细]

2023-02-03 10:20 分类：问答
How to access custom attributes defined in WCF service using C#?

First question is, how can I get the type of an object stored in a variable? Generally we do: Type t = typeof(ClassName); //if I know the class[详细]

2023-02-02 09:28 分类：问答
What is the difference of getting Type by using GetType() and typeof()? [duplicate]

This question already has answ开发者_如何学Goers here: Type Checking: typeof, GetType, or is? (15 answers)[详细]

2023-02-01 21:04 分类：问答
Absence of typeof operator in C++03?

I\'m just wondering how boost have implemented BOOST_TYPEOF (in C++03) which seems to be a very useful tool. Anyone has any idea?[详细]

2023-02-01 19:29 分类：问答
C# switch on type [duplicate]

This question already has answers here: Closed 10 years ago. 开发者_Python百科 Possible Duplicate: C# - Is there a better alternative than this to 'switch on type'?[详细]

2023-01-31 01:16 分类：问答