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Spring get current ApplicationContext
...n test) that caused a lot of tricky bugs.
– Oleksandr_DJ
Jun 26 '18 at 19:54
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How to update the value stored in Dictionary in C#?
... answered Jun 17 '14 at 4:19
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Count characters in textarea
... relevance of IDs of textarea and second span : id="post" <-> id="rem_post" and the title of the span that holds the desired characters amount of each particular textarea
<textarea class="countit" name="post" id="post"></textarea>
<p>
<span>characters remaining: <...
Swift make method parameter mutable?
...eclare an inout parameter. Think: passing in a pointer.
func reduceToZero(_ x: inout Int) {
while (x != 0) {
x = x-1
}
}
var a = 3
reduceToZero(&a)
print(a) // will print '0'
This can be particularly useful in recursion.
Apple's inout declaration guidelines can be found...
How do I get both STDOUT and STDERR to go to the terminal and a log file?
...;(tee -a $HOME/logfile) 2>&1
# Test redirection of STDOUT
echo test_stdout
# Test redirection of STDERR
ls test_stderr___this_file_does_not_exist
(Note: This only works with Bash. It will not work with /bin/sh.)
Adapted from here; the original did not, from what I can tell, catch STDE...
Accessing an SQLite Database in Swift
...nent("test.sqlite")
// open database
var db: OpaquePointer?
guard sqlite3_open(fileURL.path, &db) == SQLITE_OK else {
print("error opening database")
sqlite3_close(db)
db = nil
return
}
Note, I know it seems weird to close the database upon failure to open, but the sqlite3_op...
Linking to an external URL in Javadoc?
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I recommend <a href="http://google.com" target="_top">http://google.com</a>. The reason for adding target="_top" is because some of the generated javadoc html files make use of frames, and you probably want the navigation to affect the whole page rather than just...
Cocoa Core Data efficient way to count entities
... = [NSEntityDescription entityForName:@"YourEntity" inManagedObjectContext:_managedObjectContext];
NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init];
[fetchRequest setEntity:entity];
[fetchRequest setIncludesPropertyValues:NO];
[fetchRequest setIncludesSubentities:NO];
NSError *error = ni...
How can I declare and define multiple variables in one line using C++?
...they just happen to be the same type now but don't really need to be (uint8_t height, width; might turn into uint8_t height; uint16_t width; in the future and should have been uint8_t height; uint8_t width; to begin with).
– altendky
Jun 17 '15 at 15:08
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JavaScript, elegant way to check nested object properties for null/undefined [duplicate]
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I wish lodash would and a function for this._.has is the closest but doesn't check the value.
– GFoley83
Jul 28 '16 at 2:55
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