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generating GUID without hyphen
...rcase. A Guid with only uppercase letters can only be achieved by manually converting them all to uppercase, example:
Guid.NewGuid().ToString("N").ToUpper();
A guid with only either letter or digits makes no sense. A guid string representation is hexadecimal, and thus will always (well most likel...
How to export/import PuTTy sessions list?
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How do you import it into a different Putty on a different machine?
– Pete
Mar 10 '15 at 13:55
5
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How to get unique values in an array
...t you have to use Array.from(... new Set(a)) since Set can't be implicitly converted to an array type. Just a heads up!
– Zachscs
Apr 27 '18 at 21:25
5
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What is the difference between ExecuteScalar, ExecuteReader and ExecuteNonQuery?
...e,Delete).
Returns the count of rows effected by the Query.
Return type is int
Return value is optional and can be assigned to an integer variable.
ExecuteReader():
will work with Action and Non-Action Queries (Select)
Returns the collection of rows selected by the Query.
Return type is DataRead...
Given a DateTime object, how do I get an ISO 8601 date in string format?
...e correct. FYI the formatexception's message is: "A UTC DateTime is being converted to text in a format that is only correct for local times. This can happen when calling DateTime.ToString using the 'z' format specifier, which will include a local time zone offset in the output."
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Xcode 5 & Asset Catalog: How to reference the LaunchImage?
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- (NSString *)splashImageNameForOrientation:(UIInterfaceOrientation)orientation {
CGSize viewSize = self.view.bounds.size;
NSString* viewOrientation = @"Portrait";
if (UIDeviceOrientationIsLandscape(orientation)) {
viewSize = CGSizeMake(viewSize.height...
Grab a segment of an array in Java without creating a new array on heap
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Disclaimer: This answer does not conform to the constraints of the question:
I don't want to have to create a new byte array in the heap memory just to do that.
(Honestly, I feel my answer is worthy of deletion. The answer by @unique72 is correct. Imma let this edit sit for...
mmap() vs. reading blocks
...r if you know you can share it with other processes (MAP_SHARED isn't very interesting if there is no actual sharing). Read files normally if you access data sequentially or discard it after reading. And if either method makes your program less complex, do that. For many real world cases there's ...
Recursion or Iteration?
...gorithms to make them faster and more efficient. He also goes over how to convert a traditional loop into a recursive function and the benefits of using tail-end recursion. His closing words really summed up some of my key points I think:
"recursive programming gives the programmer a better w...
What is the difference between `let` and `var` in swift?
...56329
EDIT
Because comments asking for adding other facts to the answer, converting this to community wiki answer. Feel free edit the answer to make it better.
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