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How do I get an ISO 8601 date on iOS?
...example, 2004-02-12T15:19:21+00:00 ) in PHP via date('c') , but how does one get it in Objective-C (iPhone)? Is there a similarly short way to do it?
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Can you overload controller methods in ASP.NET MVC?
...two methods accept different arguments. Is this something that cannot be done?
17 Answers
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Find region from within an EC2 instance
... use it. I have the following code which seems to work though:
EC2_AVAIL_ZONE=`curl -s http://169.254.169.254/latest/meta-data/placement/availability-zone`
EC2_REGION="`echo \"$EC2_AVAIL_ZONE\" | sed 's/[a-z]$//'`"
Hope this helps.
EDIT: Improved sed based on comments
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Cannot delete directory with Directory.Delete(path, true)
...reas of the machine that are allowed to be deleted because do you want someone to call this function on C:\WINDOWS (%WinDir%) or C:\.
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How to sort Map values by key in Java?
...ation order.... why not we using LinkedHashSet ? We just put the questions one by one, and it is getting ordered by the order of the insertation. Can some help me out with this ?
– Karoly
Jun 19 '15 at 13:15
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Empty arrays seem to equal true and false at the same time
...because toString called on Array returns Array.join(), and empty string is one of falsy values in JavaScript.
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When to use .First and when to use .FirstOrDefault with LINQ?
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I would use First() when I know or expect the sequence to have at least one element. In other words, when it is an exceptional occurrence that the sequence is empty.
Use FirstOrDefault() when you know that you will need to check whether there was an element or not. In other words, when it is leg...
How do I select elements of an array given condition?
... I get "ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.all()"
– ru111
Dec 7 '17 at 20:15
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Python nested functions variable scoping [duplicate]
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Rather than declaring a special object or map or array,
one can also use a function attribute.
This makes the scoping of the variable really clear.
def sumsquares(x,y):
def addsquare(n):
sumsquares.total += n*n
sumsquares.total = 0
addsquare(x)
addsquare(y)
return ...
Android Studio: Add jar as library?
...e four, it started working fine. I think the 'Add as library' step was the one I'd previously missed, and it didn't work until I cleaned it either.
[Edit - added the build.gradle step which is also necessary as others have pointed out]
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