大约有 13,065 项符合查询结果（耗时：0.0290秒） [XML]
how to permit an array with strong parameters
I have a functioning Rails 3 app that uses has_many :through associations which is not, as I remake it as a Rails 4 app, letting me save ids from the associated model in the Rails 4 version.
...
How to properly check if std::function is empty in C++11?
I was wondering how to properly check if an std::function is empty. Consider this example:
3 Answers
...
Difference between passing array and array pointer into function in C
What is the difference between the two functions in C?
3 Answers
3
...
Is #pragma once part of the C++11 standard?
Traditionally, the standard and portable way to avoid multiple header inclusions in C++ was/is to use the #ifndef - #define - #endif pre-compiler directives scheme also called macro-guard scheme (see code snippet below).
...
How to get a specific output iterating a hash in Ruby?
I want to get a specific output iterating a Ruby Hash.
6 Answers
6
...
How to merge remote master to local branch
I have a local branch of a project ("configUpdate") that I've forked from somebody else's project and I've done a load of changes on it and would like to merge the changes they've made in to my local branch.
...
T-SQL - function with default parameters
...
you have to call it like this
SELECT dbo.CheckIfSFExists(23, default)
From Technet:
When a parameter of the function has a default value, the keyword
DEFAULT must be specified when the function is called in order to
...
Cast Object to Generic Type for returning
Is there a way to cast an object to return value of a method?
I tried this way but it gave a compile time exception in "instanceof" part:
...
How do I remove a project configuration in Visual Studio 2008?
I have a Visual Studio 2008 solution into which I have imported a number of pre-existing projects. The projects are mixed-language sample code (C#, VB, C++/CLI). They currently have multiple configurations, but I want each project only to have only a single "Debug" configuration.
...
Simplest way to do a recursive self-join?
What is the simplest way of doing a recursive self-join in SQL Server? I have a table like this:
5 Answers
...