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Using -performSelector: vs. just calling the method
...s explained in a previous answer. For example
SEL method = NSSelectorFromString([NSString stringWithFormat:@"doSomethingWithMy%@:", @"Age");
[object performSelector:method];
The other use, is to asynchronously dispatch a message to object, that will be executed later on the current runloop. For ...
How do you make a web application in Clojure? [closed]
...
Cons (1):
Documentation (improving). Also, I don't want to program in strings embedded in an nginx config file if that is the only way to do it.
Probably complicates a bit the first deployment (?)
Immutant
Note : I haven't played with it.
Pros :
integrated (caching, messaging, scheduling,...
In ASP.NET, when should I use Session.Clear() rather than Session.Abandon()?
...up again.
public static void RemoveEverythingButUserInfo()
{
foreach (String o in HttpContext.Current.Session.Keys)
{
if (o != "UserInfoIDontWantToAskForAgain")
keys.Add(o);
}
}
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Make column not nullable in a Laravel migration
... @Musa Apparently you can set a column nullable (ex: $table->string('colmn', 255)->nullable()->change();) but the reverse doesn't appear to work ($table->string('colmn', 255)->change();), so you still need to use raw db queries for this
– Luís Cruz
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Can't execute jar- file: “no main manifest attribute”
...ere com.mypackage.MyClass is the class holding the public static void main(String[] args) entry point.
Note that there are several ways to get this done either with the CLI, Maven, Ant or Gradle:
For CLI, the following command will do: (tks @dvvrt)
jar cmvf META-INF/MANIFEST.MF <new-jar-filename&...
Does the use of the “Async” suffix in a method name depend on whether the 'async' modifier is used?
...g against many Microsoft Style guidelines, like avoiding things like PersonString or PriceDecimal so why use GetAsync - API consumers of async API's need not worry about this as the request always returns after all tasks complete anyway. Its silly and really annoying me. But its just another convent...
Objective-C pass block as parameter
...ou can certainly pass a strongly-typed argument such as NSNumber * or std::string& or anything else you could pass as a function argument. This is just an example. (For a block that's equivalent except for replacing id with NSNumber, the typedef would be typedef void (^ IteratorWithNumberBlock)(...
Ant: How to execute a command for each file in directory?
... <condition property="hasMoreElements">
<contains string="@{list}" substring=";" />
</condition>
<loadresource property="tail" if:true="${hasMoreElements}">
<concat>@{list}</concat>
<filte...
Convert int to ASCII and back in Python
...
ASCII to int:
ord('a')
gives 97
And back to a string:
in Python2: str(unichr(97))
in Python3: chr(97)
gives 'a'
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slf4j: how to log formatted message, object array, exception
...not recognize that in your example you used n=3 placeholders in the format string and n+1=4 elements in the object array. I had n placeholders in the format string and also n elements in the object array plus an exception as third parameter. My expectation was that the exception would be printed wit...