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Android: Storing username and password?
If I want to store the username and password to be used inside an Android application, what is the best way to do it? Is it through the preferences screen (but what if the user misses this?), or pop up a dialog box and ask the user for the credentials? If so, I do have to maintain state for the appl...
Why do we need C Unions?
... float to integer works? I don`t think so, as int and float are stored in different formats in memory. Can you explain your example?
– spin_eight
Oct 10 '12 at 10:51
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Why is it said that “HTTP is a stateless protocol”?
...and TCP's state is not HTTP's. The two are entirely separate protocols at different layers in the stack. You could serve HTTP over named pipes if you wanted, or even by sending files around, if you got enough masochists to agree to do it, and it would work precisely because HTTP is transport-protoco...
Django - limiting query results
...ysets are lazy. That means a query will hit the database only when you specifically ask for the result.
So until you print or actually use the result of a query you can filter further with no database access.
As you can see below your code only executes one sql query to fetch only the last 10 ite...
angularjs: ng-src equivalent for background-image:url(…)
...rc is a native directive, so it seems you want a similar directive that modifies your div's background-image style.
You could write your own directive that does exactly what you want. For example
app.directive('backImg', function(){
return function(scope, element, attrs){
var url = a...
Notification when a file changes?
Is there some mechanism by which I can be notified (in C#) when a file is modified on the disc?
3 Answers
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Is MVC a Design Pattern or Architectural pattern
...ness logic layer, maybe some service layer and data access layer. That is, if you're into n-tier approach.
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How do you build a Singleton in Dart?
...lthough what's the point of instantiating it twice? Shouldn't it be better if it threw an error when you instantiate it the second time?
– westoque
May 29 '13 at 6:30
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Eclipse - Unable to install breakpoint due to missing line number attributes
....4.1, SUN JVM1.6.0_07 connected to Tomcat 6.0 (running in debug-mode on a different machine, Sun JVM1.6.0_16, the debug connection did work correctly).
Window --> Preferences --> Java --> Compiler --> Classfile Generation: "add line number attributes to generated class file" was checked...
When writing a directive in AngularJS, how do I decide if I need no new scope, a new child scope, or
...no new scope at all
I don't use this very often, but as @MarkRajcok said, if the directive doesn't access any scope variables (and obviously doesn't set any!) then this is just fine as far as I am concerned. This is also helpful for child directives that are only used in the context of the parent d...