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Add a new element to an array without specifying the index in Bash
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onTouchListener warning: onTouch should call View#performClick when a click is detected
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How can I programmatically generate keypress events in C#?
...ext = "Hello";
var target = Keyboard.FocusedElement;
var routedEvent = TextCompositionManager.TextInputEvent;
target.RaiseEvent(
new TextCompositionEventArgs(
InputManager.Current.PrimaryKeyboardDevice,
new TextComposition(InputManager.Current, target, text))
{ RoutedEvent = routedEvent...
What are the “standard unambiguous date” formats for string-to-date conversion in R?
...8601 to be the standard, unambiguous format. And I agree that as.Date not complaining about "01/01/2000" is inconsistent with the error message.
– Joshua Ulrich
Aug 3 '15 at 20:04
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Passing two command parameters using a WPF binding
I have a command which I am executing from my XAML file using the following standard syntax:
5 Answers
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Does a valid XML file require an XML declaration?
...ML 1.0, the XML Declaration is optional. See section 2.8 of the XML 1.0 Recommendation, where it says it "should" be used -- which means it is recommended, but not mandatory. In XML 1.1, however, the declaration is mandatory. See section 2.8 of the XML 1.1 Recommendation, where it says "MUST" be us...
Do I need a content-type header for HTTP GET requests?
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How to remove jar file from local maven repository which was added with install:install-file?
I use above command to install local jar into maven local repo. Now I have got the dependency from maven repo. I want to remove this from local repo. How to clean it ?
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mongodb group values by multiple fields
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This turns out to be very difficult to do, but it can be done though the complexity just increases with the number of items you need to match. To keep it simple we can keep this at 2 matches at most:
db.books.aggregate([
{ "$group": {
"_id": {
"addr": "$addr",
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Fastest way to remove first char in a String
... really isn't the same as the others - if the string is "///foo" it will become "foo" instead of "//foo".
The first option needs a bit more work to understand than the third - I would view the Substring option as the most common and readable.
(Obviously each of them as an individual statement won'...