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Determine installed PowerShell version
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+50
Use $PSVersionTable.PSVersion to determine the engine version. If the variable does not exist, it is safe to assume the engine is vers...
Unicode equivalents for \w and \b in Java regular expressions?
...s Regex Unicode Problems
The problem with Java regexes is that the Perl 1.0 charclass escapes — meaning \w, \b, \s, \d and their complements — are not in Java extended to work with Unicode. Alone amongst these, \b enjoys certain extended semantics, but these map neither to \w, nor to Unicode i...
overlay two images in android to set an imageview
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Resources r = getResources();
Drawable[] layers = new Drawable[2];
layers[0] = r.getDrawable(R.drawable.t);
layers[1] = r.getDrawable(R.drawable.tt);
LayerDrawable layerDrawable = new LayerDrawable(layers);
testimage.setImageDrawable(layerDrawable);
(I haven't tested this code so there may be a m...
Is there a difference between using a dict literal and a dict constructor?
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10 Answers
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Why do some C# lambda expressions compile to static methods?
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Action<string> withClosure = s => Console.WriteLine("My name is {0} and I am {1} years old", s, age);
Action<string> withoutClosure = s => Console.WriteLine("My name is {0}", s);
Console.WriteLine(withClosure.Method.IsStatic);
Console.WriteLine(withoutClosure.Method.IsStatic);
T...
Solving a “communications link failure” with JDBC and MySQL [duplicate]
...ications link failure
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
I spent several days to solve this problem. I have tested many approaches that have been mentioned in different web sites, but non of them worked....
Why is using “for…in” for array iteration a bad idea?
...5; // Perfectly legal JavaScript that resizes the array.
for (var i = 0; i < a.length; i++) {
// Iterate over numeric indexes from 0 to 5, as everyone expects.
console.log(a[i]);
}
/* Will display:
undefined
undefined
undefined
undefined
undefined
5
*/
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What is the difference between libsqlite3.dylib and libsqlite3.0.dylib?
...rial is linking the SQLite3 framework. The tutorial calls for libsqlite3.0.dylib but I noticed another one libsqlite3.dylib. Is the latter just a symlink to the latest v3 library like the convention for package managers on UNIX or is there a difference?
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Most efficient way to reverse a numpy array
...vehasteveha
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Detail change after Git pull
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209
Suppose you're pulling to master. You can refer to the previous position of master by master@{1...