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How do I manage MongoDB connections in a Node.js web application?
...his is a right answer. My god imagine that I have to open and close each time I do something it would be 350K per hour just for my inserts! It's like attacking my own server.
– Maziyar
Sep 30 '13 at 1:12
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How to set or change the default Java (JDK) version on OS X?
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First run /usr/libexec/java_home -V which will output something like the following:
Matching Java Virtual Machines (3):
1.8.0_05, x86_64: "Java SE 8" /Library/Java/JavaVirtualMachines/jdk1.8.0_05.jdk/Contents/Home
1.6.0_65-b14-462, x86_64: "Java SE 6"...
Failed binder transaction when putting an bitmap dynamically in a widget
Can anybody tell me the reason for failed binder transaction error? I can see this error message in logcat.
I am getting this error while trying to put an bitmap dynamically in a widget...
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Why can't I define a default constructor for a struct in .NET?
In .NET, a value type (C# struct ) can't have a constructor with no parameters. According to this post this is mandated by the CLI specification. What happens is that for every value-type a default constructor is created (by the compiler?) which initialized all members to zero (or null ).
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How should I ethically approach user password storage for later plaintext retrieval?
...king you don't really need to retrieve the password they set (they don't remember what it is anyway), you need to be able to give them a password they can use.
Think about it: if the user needs to retrieve the password, it's because they've forgotten it. In which case a new password is just as goo...
Intercepting links from the browser to open my Android app
...hotostream app's AndroidManifest.xml,
<activity
android:name=".PhotostreamActivity"
android:label="@string/application_name">
<!-- ... -->
<intent-filter>
<action android:name="android.intent.action.VIEW" />
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How to add additional fields to form before submit?
Is there a way to use javascript and JQuery to add some additional fields to be sent from a HTTP form using POST?
6 Answers...
How is Generic Covariance & Contra-variance Implemented in C# 4.0?
I didn't attend PDC 2008, but I heard some news that C# 4.0 is announced to support Generic covariance and contra-variance. That is, List<string> can be assigned to List<object> . How could that be?
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Make header and footer files to be included in multiple html pages
...</html>
and put this code in header.html and footer.html, at the same location as index.html
<a href="http://www.google.com">click here for google</a>
Now, when you visit index.html, you should be able to click the link tags.
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Will iOS launch my app into the background if it was force-quit by the user?
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UPDATE2:
You can achieve this using the new PushKit framework, introduced in iOS 8. Though PushKit is used for VoIP. So your usage should be for VoIP related otherwise there is risk of app rejection. (See this answer).
UDPDATE1:
The documentation has been clarified for iOS8. ...