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Value of type 'T' cannot be converted to
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Even though it's inside of an if block, the compiler doesn't know that T is string.
Therefore, it doesn't let you cast. (For the same reason that you cannot cast DateTime to string)
You need to cast to object, (which any T can cast to), and from there to string (since o...
How do I make an http request using cookies on Android?
I'd like to make an http request to a remote server while properly handling cookies (eg. storing cookies sent by the server, and sending those cookies when I make subsequent requests). It'd be nice to preserve any and all cookies, but really the only one I care about is the session cookie.
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Why switch is faster than if
Lots of Java books describe the switch statement as being faster than the if else statement. But I did not find out anywhere why switch is faster than if .
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SQL NVARCHAR and VARCHAR Limits
All, I have a large (unavoidable) dynamic SQL query. Due to the number of fields in the selection criteria the string containing the dynamic SQL is growing over 4000 chars. Now, I understand that there is a 4000 max set for NVARCHAR(MAX) , but looking at the executed SQL in Server Profiler for the ...
Using Build Flavors - Structuring source folders and build.gradle correctly
... in the Studio preferences, under the Gradle section, you can enable auto-import for your project (we'll enable this by default later). This will let Studio re-import your build.gradle whenever you edit it.
Creating flavors doesn't mean you're going to use custom code for them so we don't create th...
How to set an iframe src attribute from a variable in AngularJS
I'm trying to set the src attribute of an iframe from a variable and I can't get it to work...
6 Answers
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Git - How to use .netrc file on Windows to save user and password
Is it possible to use a .netrc file on Windows when I'm using Git to clone a remote repository with HTTP and user - password?
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C++ Lock-free Hazard Pointer（冒险指针） - C/C++ - 清泛网 - 专注C/C++及内核技术
C++ Lock-free Hazard Pointer（冒险指针）hazard_pointer1 Safe Reclamation MethodsFolly 的 Hazard Pointer 实现中有一段注释，详细描述了 C++ 里几种主流的安全内存回收方法，列表如下：优点缺点场景Locking易用读高开销
1. Safe Reclamation Methods
Fo...
multiprocessing.Pool: When to use apply, apply_async or map?
I have not seen clear examples with use-cases for Pool.apply , Pool.apply_async and Pool.map . I am mainly using Pool.map ; what are the advantages of others?
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Why would I make() or new()?
The introduction documents dedicate many paragraphs to explaining the difference between new() and make() , but in practice, you can create objects within local scope and return them.
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