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How can I return NULL from a generic method in C#?
...: class, IList. If you have constraints to different types, you repeat the token where, as in where TFoo : class where TBar : IList.
– Jeppe Stig Nielsen
Sep 22 '19 at 8:17
ad...
Placeholder in UITextView
...at const UI_PLACEHOLDER_TEXT_CHANGED_ANIMATION_DURATION = 0.25;
- (void)dealloc
{
[[NSNotificationCenter defaultCenter] removeObserver:self];
#if __has_feature(objc_arc)
#else
[_placeHolderLabel release]; _placeHolderLabel = nil;
[_placeholderColor release]; _placeholderColor = nil;
...
Get the Last Inserted Id Using Laravel Eloquent
...ect the $fillable whitelist so you'll get errors with it trying to insert _token and anything that isn't a field in the database, end up setting things you want to filter, etc. That bummed me out, because I want to use mass assignment and overall write less code when possible. Fortunately Eloquent's...
Apache: client denied by server configuration
...is that it's working fine on another server with same app/vhost and Apache/PHP versions. Different servers though - AWS Linux and Ubuntu 14.10 respectively. Strange... I guess I need to compare each server's httpd.conf files to see if there is a config difference there...
– Dar...
When NOT to use yield (return) [duplicate]
...e O(n) in stack space. It is O(h) in heap space because each enumerator is allocated on the heap. (On implementations of C# I'm aware of; a conforming implementation might have other stack or heap space characteristics.)
But iterating a tree can be O(n) in time and O(1) in stack space. You can wr...
Creating a blurring overlay view
...tStyleDark];
UIVisualEffectView *blurEffectView = [[UIVisualEffectView alloc] initWithEffect:blurEffect];
//always fill the view
blurEffectView.frame = self.view.bounds;
blurEffectView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
[self.v...
Convert ArrayList to String[] array [duplicate]
...
According to Joshua Bloch in Effective Java, preallocating the array harms performance. Provide a zero-length array instead. stockList.toArray(new String[0])
– Crashh
Mar 10 '18 at 3:20
...
Is there a Subversion command to reset the working copy?
...
Pure Windows cmd/bat solution:
svn cleanup .
svn revert -R .
For /f "tokens=1,2" %%A in ('svn status --no-ignore') Do (
If [%%A]==[?] ( Call :UniDelete %%B
) Else If [%%A]==[I] Call :UniDelete %%B
)
svn update .
goto :eof
:UniDelete delete file/dir
IF EXIST "%1\*" (
RD /S /Q ...
“static const” vs “#define” vs “enum”
...ll appear in the object code as part of the instructions rather than being allocated storage in the data segment or in heap or on the stack. You'll have some space allocated for the static const int, but the compiler might optimize it away if you don't take an address.
– Jonat...
Does assignment with a comma work?
...er vs AssignmentExpression) in the grammar and just happen to use the same token.
– Ryan Cavanaugh
Apr 1 '14 at 2:53
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