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What's a reliable way to make an iOS app crash?
... popular one - unrecognised selector crash:
NSObject *object = [[NSObject alloc] init];
[object performSelector:@selector(asfd)];
Make sure you don't have -asdf method implemented in that class haha
Or index beyond bound exception:
NSArray * array = [NSArray array];
[array objectAtIndex:5];
A...
CHECK constraint in MySQL is not working
... be implemented in MySQL.
See this bug report: https://bugs.mysql.com/bug.php?id=3464
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When should I use the HashSet type?
... HashSet<string> of all the valid commands, so whenever I hit a @xxx token in the lexer, I use validCommands.Contains(tokenText) as my O(1) validity check. I really don't care about anything except existence of the command in the set of valid commands. Lets look at the alternatives I faced:
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Checking whether a variable is an integer or not [duplicate]
...type in the Python source, but I don't think that's visible outside of C.
Token SO reply: Are you sure you should be checking its type? Either don't pass a type you can't handle, or don't try to outsmart your potential code reusers, they may have a good reason not to pass an int to your function.
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Why use iterators instead of array indices?
... end+1(!). For streams the iterator model is just surreal -- an imaginary token that does not exist. Likewise for linked lists. The paradigm only makes sense for arrays, and then not much. Why do I need two iterator object, not just one...
– Tuntable
Jan 21...
Are there any HTTP/HTTPS interception tools like Fiddler for mac OS X? [closed]
...esponses) that have passed through WebScarab.
http://www.owasp.org/index.php/Category:OWASP_WebScarab_Project
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Produce a random number in a range using C#
... Darrelk answer.
It is implemented using C# extension methods.
It does not allocate memory (new Random()) every time this method is called.
public static class RandomExtensionMethods
{
public static double NextDoubleRange(this System.Random random, double minNumber, double maxNumber)
{
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Disable pasting text into HTML form
...u've already saved their other information, so the message just includes a token saying which account this is for.
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What's the _ underscore representative of in Swift References?
...
The underscore is a general token used to indicate a discarded value.
In this specific case, it means that the function will be invoked as runAction(argument) instead of runAction(action:argument)
In other contexts it has other similar meaning, e.g. i...
How do I use extern to share variables between source files?
...ler is informed that a
variable exists (and this is its type); it does not allocate the
storage for the variable at that point.
A variable is defined when the compiler allocates the storage for
the variable.
You may declare a variable multiple times (though once is sufficient);
you may only defin...