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The best way to remove duplicate values from NSMutableArray in Objective-C?
...an NSSet to begin with?
I wrote the answer below in 2009; in 2011, Apple added NSOrderedSet to iOS 5 and Mac OS X 10.7. What had been an algorithm is now two lines of code:
NSOrderedSet *orderedSet = [NSOrderedSet orderedSetWithArray:yourArray];
NSArray *arrayWithoutDuplicates = [orderedSet array]...
Java: Instanceof and Generics
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YishaiYishai
83.1k2626 gold badges173173 silver badges248248 bronze badges
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How do I create a unique constraint that also allows nulls?
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SQL Server 2008 +
You can create a unique index that accept multiple NULLs with a WHERE clause. See the answer below.
Prior to SQL Server 2008
You cannot create a UNIQUE constraint and allow NULLs. You need set a default value of NEWID().
Update the existing values to NEWID(...
In an array of objects, fastest way to find the index of an object whose attributes match a search
... 2 (using findIndex) actually is faster for me (on Microsoft Edge Chromium 83.0.474.0)
– rezadru
Apr 13 at 17:34
Block...
“The remote certificate is invalid according to the validation procedure.” using Gmail SMTP server
... // Disabling certificate validation can expose you to a man-in-the-middle attack
// which may allow your encrypted message to be read by an attacker
// https://stackoverflow.com/a/14907718/740639
ServicePointManager.ServerCertificateValidationCallback =
dele...
Should I compile with /MD or /MT?
...l),
your executable can be smaller (since it doesn't have the library embedded in it), and
I believe that at very least the code segment of a DLL is shared amongst all processes that are actively using it (reducing the total amount of RAM consumed).
I've also found that in practice, when working...
How to track untracked content?
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This saved my ass so much the other day. I had accidentally added something with a .git directory in it to my git repo, and then git kinda-sorta thought it had a submodule, which was causing my git svn dcommits to freak out. I would upvote you 3 times if I could.
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Shell - Write variable contents to a file
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EricEric
83.8k4343 gold badges195195 silver badges315315 bronze badges
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How do I execute a program from Python? os.system fails due to spaces in path
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83
It is much simpler to use raw string in windows: r"C:\Temp\a b c\Notepad.exe"
– PierreBdR
Oct 15 '08...
Javascript library for human-friendly relative date formatting [closed]
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