typeof

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When iterating over values, why does typeof(value) return "string" when value is a number? JavaScript

I\'m using Google Chrome for this test: Contrary to intuition, the f开发者_如何学JAVAirst loop alerts "string" three times, while the second loop alerts "number" three times.[详细]

2023-01-01 05:51 分类：问答
Declare variables that depend on unknown type in template functions

Suppose I\'m writing a template function foo that has type parameter T. It gets an object of type T that must have method bar(). And inside foo I want to create a vector of objects of type returned by[详细]

2022-12-31 01:17 分类：问答
C++ typeof operator

very short q开发者_高级运维uestion. Is C++ typeof operator standard?de facto standard? which compilers do not provided it (besides Microsoft C++)?The typeof operator is nonstandard, but the upcoming[详细]

2022-12-26 20:25 分类：问答
Macro to improve callback registration readability

I\'m trying to write a macro to make a specific usage of callbacks in C++ easier. All my callbacks are member functions and will take this as first argument and a second one whose type inherits from a[详细]

2022-12-22 16:28 分类：问答
In C#, how to create an object given the name of its type? [duplicate]

This question already has answers here: Create an instance of a class from a string (8 answers) 开发者_JAVA百科[详细]

2022-12-21 05:25 分类：问答
How to check if an object is not an array?

So i have a function that needs to check if an argument is an object, but this fails because: typeof [] // returns \'object\'[详细]

2022-12-20 09:28 分类：问答
Determine the type of an object? [duplicate]

This question already has answers here: What's the canonical way to check for type in Python? 开发者_开发知识库(13 answers)[详细]

2022-12-19 08:28 分类：问答
Get type of variable

If I understand correctly, typeid can deter开发者_如何学Gomine the actual type in polymorphism, while typeof cannot.[详细]

2022-12-15 09:08 分类：问答
Can I set the type of a Javascript object?

I\'m trying to use some of the more advanced OO features of Javascript, following Doug Crawford\'s \"super constructor\" pattern. However, I don\'t know how to set and get types from my objects using[详细]

2022-12-14 17:47 分类：问答
C# Generics: Better Way to Match the Generic's Type to Another?

UPDATE:Didn\'t give a great ex开发者_高级运维ample.Hopefully it\'s better now. Is there a better way than this:[详细]

2022-12-13 21:00 分类：问答