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Why use 'git rm' to remove a file instead of 'rm'?
On SVN, removing something from the filesystem directly (rather than using svn) created a load of headaches.
7 Answers
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call a static method inside a class?
how do i call a static method from another method inside the same class?
4 Answers
4
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How do I get the day of the week with Foundation?
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[dateFormatter setDateFormat:@"EEEE"];
NSLog(@"%@", [dateFormatter stringFromDate:[NSDate date]]);
outputs current day of week as a string in locale dependent on current regional settings.
To get just a week day number you must use NSCalendar class:
NSCalendar *gregorian = [[[NSCalendar alloc]...
Deep null checking, is there a better way?
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@John: We get this feature request almost entirely from our most experienced programmers. The MVPs ask for this all the time. But I understand that opinions vary; if you'd like to give a constructive language design suggestion in addition to your criticism, I'm happy to consi...
Convert SQLITE SQL dump file to POSTGRESQL
...le.sql
If you want the id column to "auto increment" then change its type from "int" to "serial" in the table creation line. PostgreSQL will then attach a sequence to that column so that INSERTs with NULL ids will be automatically assigned the next available value. PostgreSQL will also not recogniz...
Are tuples more efficient than lists in Python?
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Although the suggestion you can conclude anything from counting ops is misguided, this does show the key difference: constant tuples are stored as such in the bytecode and just referenced when used, whereas lists need to be built at runtime.
– poolie
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What does this mean: Failure [INSTALL_FAILED_CONTAINER_ERROR]?
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remove this file from your device
/mnt/secure/asec/smdl2tmp1.asec
Edit/Update by Mathias Conradt (OP):
If you don't have root access, you need to mount the sdcard and remove it via pc:
/.android_secure/smdl2tmp1.asec
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Applicatives compose, monads don't
...lies essentially on the extra power of (>>=) to choose a computation from a value, and that can be important. However, supporting that power makes monads hard to compose. If we try to build ‘double-bind’
(>>>>==) :: (Monad m, Monad n) => m (n s) -> (s -> m (n t)) ->...
How to store custom objects in NSUserDefaults
...jectForKey:@"subcategory"];
}
return self;
}
Reading and writing from NSUserDefaults:
- (void)saveCustomObject:(MyObject *)object key:(NSString *)key {
NSData *encodedObject = [NSKeyedArchiver archivedDataWithRootObject:object];
NSUserDefaults *defaults = [NSUserDefaults standardU...
How to identify platform/compiler from preprocessor macros?
...tackoverflow.com%2fquestions%2f4605842%2fhow-to-identify-platform-compiler-from-preprocessor-macros%23new-answer', 'question_page');