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What is Haskell used for in the real world? [closed]
... to be able to
easily roll back every change if some object deep in the call
hierarchy decided the message is flawed? How about having a history of
different states?
Many housekeeping tasks made for you: deconstructing data structures (PatternMatching), storing variable bindings (LexicalScop...
Exporting a function in shell
...n parent shell (bash, sh or ksh) so that the function will be available to all the child process launced from the parent process?
...
switch case statement error: case expressions must be constant expression
...instead of an if-else:
private enum LayoutElement {
NONE(-1),
PLAY_BUTTON(R.id.playbtn),
STOP_BUTTON(R.id.stopbtn),
MENU_BUTTON(R.id.btnmenu);
private static class _ {
static SparseArray<LayoutElement> elements = new SparseArray<LayoutElement>();
}
...
Find document with array that contains a specific value
...
@AeroWang use this db.person.find( { favouriteFoods: { $all: ["sushi", "sashimi"] } } ) will return all person loving both "sushi" and "sashimi" someone pointed it a few answers below
– benraay
Jul 1 at 14:20
...
Different return values the first and second time with Moq
...ou can setup a sequence of events using SetupSequence. Here's an example:
_mockClient.SetupSequence(m => m.Connect(It.IsAny<String>(), It.IsAny<int>(), It.IsAny<int>()))
.Throws(new SocketException())
.Throws(new SocketException())
.Returns(true)
...
Draw in Canvas by finger, Android
...ur onDraw() you draw the paths using the paint of your choice. You should call invalidate() to refresh the view.
To choose options you can click menu and choose the options.
The below can be used as a reference. You can modify the below according to your needs.
public class FingerPaintActivity ex...
Extract source code from .jar file
...ct source code when the jar contains java files, e.g. jars with names typically ending in "-sources". It indeed does only extract .class files when the jar does not contain any java source files.
– edwardmp
May 2 '16 at 9:04
...
JSON and XML comparison [closed]
...ne, a little background:
edit: I should mention that this comparison is really from the perspective of using them in a browser with JavaScript. It's not the way either data format has to be used, and there are plenty of good parsers which will change the details to make what I'm saying not quite va...
There is no ViewData item of type 'IEnumerable' that has the key 'xxx'
...ntains a SelectList with the same name as your DropDownList i.e. "submarket_0", the Html helper will automatically populate your DropDownList with that data if you don't specify the 2nd parameter which in this case is the source SelectList.
What happened with my error was:
Because the table contai...
How to remove trailing whitespace of all files recursively?
How can you remove all of the trailing whitespace of an entire project? Starting at a root directory, and removing the trailing whitespace from all files in all folders.
...