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How do I manage MongoDB connections in a Node.js web application?
...there are multiple database.. should i open a connection for each database all together. If not, Is it OK to open and close when required?
– Aman Gupta
Oct 25 '16 at 14:19
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Android - Center TextView Horizontally in LinearLayout
...ravity specified. Instead of placing the whole widget center what you're really trying to do is place the content in the center which can be accomplished with android:gravity="center_horizontal" and the android:layout_gravity attribute can be removed.
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PHP and MySQL - how to avoid password in source code? [duplicate]
I have a small PHP application storing data in a MySQL database. Currently username / password are hard-coded in the PHP code. A situation I do not really like, for example, since the code is also available in a repository.
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Equivalent of typedef in C#
...impact that source file. In C and C++, my experience is that typedef is usually used within .h files which are included widely - so a single typedef can be used over a whole project. That ability does not exist in C#, because there's no #include functionality in C# that would allow you to include th...
Assigning out/ref parameters in Moq
...erface IGobbler
{
bool Gobble(ref int amount);
}
delegate void GobbleCallback(ref int amount); // needed for Callback
delegate bool GobbleReturns(ref int amount); // needed for Returns
var mock = new Mock<IGobbler>();
mock.Setup(m => m.Gobble(ref It.Ref<int>.IsAny)) //...
IntelliJ gives Fatal Error: Unable to find package java.lang in classpath or bootclasspath
...
Somehow the JDK language jars were removed from the classpath. All I had to do was reapply the JSDK home path.
Goto:
File -> Project Structure -> Platform Settings -> SDKs
Re-apply the JSDK home path.
Doing this added about 15 jars to the classpath. Apparently these are impo...
Rolling or sliding window iterator?
...nder why the default window size should be 2? Should it have a default at all?
– SingleNegationElimination
Jul 25 '11 at 22:02
19
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How do I convert a NSString into a std::string?
...ou don't want non-ASCII characters in there, you can use dataUsingEncoding:allowLossyConversion: to get an NSData representation of the string with lossy encoded ASCII content, and then throw that at your std::string
share
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How to concatenate two IEnumerable into a new IEnumerable?
... the names of actions you want to perform are likely close if not exactly called what you are after. Always browse IntelliSense, you learn a lot.
– Adam Houldsworth
Jan 31 '14 at 11:02
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What is the Java ?: operator called and what does it do?
... count = getHereCount(index);
else
count = getAwayCount(index);
It's called the conditional operator. Many people (erroneously) call it the ternary operator, because it's the only ternary (three-argument) operator in Java, C, C++, and probably many other languages. But theoretically there could...