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How to call base.base.method()?
... would use something like this:
class Derived : Base
{
protected bool _useBaseSay = false;
public override void Say()
{
if(this._useBaseSay)
base.Say();
else
Console.WriteLine("Called from Derived");
}
}
Of course, in a real implementation,...
What does an underscore in front of an import statement mean?
...initialization), use the blank identifier as explicit package name:
import _ "lib/math"
In sqlite3
In the case of go-sqlite3, the underscore import is used for the side-effect of registering the sqlite3 driver as a database driver in the init() function, without importing any other functions:
sql.R...
Are there strongly-typed collections in Objective-C?
...but you can also add them to your own classes:
@interface GenericsTest<__covariant T> : NSObject
-(void)genericMethod:(T)object;
@end
@implementation GenericsTest
-(void)genericMethod:(id)object {}
@end
Objective-C will behave like it did before with compiler warnings.
GenericsTest<...
How do I sort a vector of pairs based on the second element of the pair?
...custom comparator (it's an optional 3rd argument to std::sort)
struct sort_pred {
bool operator()(const std::pair<int,int> &left, const std::pair<int,int> &right) {
return left.second < right.second;
}
};
std::sort(v.begin(), v.end(), sort_pred());
If you'r...
Preserve Line Breaks From TextArea When Writing To MySQL
...
Here is what I use
$textToStore = nl2br(htmlentities($inputText, ENT_QUOTES, 'UTF-8'));
$inputText is the text provided by either the form or textarea.
$textToStore is the returned text from nl2br and htmlentities, to be stored in your database.
ENT_QUOTES will convert both double and singl...
Auto Resize Image in CSS FlexBox Layout and keeping Aspect Ratio?
...values for align-items you could use to override: w3schools.com/cssref/css3_pr_align-items.asp
– Kyle Vassella
Oct 31 '17 at 16:50
...
How to lose margin/padding in UITextView?
...r subtle mess-up by Apple, you have to add:
override func setContentOffset(_ contentOffset: CGPoint, animated: Bool) {
super.setContentOffset(contentOffset, animated: false) // sic
}
(3) Arguably, we should be adding :
contentInset = UIEdgeInsets.zero
just after .lineFragmentPadding = 0 in UIT...
Parse query string in JavaScript [duplicate]
... == aboutus.aspx
And to parse the query string of current page:-
var $_GET = URI(document.URL).query(true); // ala PHP
alert($_GET['dest']); // == aboutus.aspx
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improve this answer...
file_put_contents - failed to open stream: Permission denied
... the folder
sudo chown -R www-data:www-data /var/www
that should make file_put_contents work now. But for more security you better also set the permissions like below
find /var/www -type d -print0 | xargs -0 chmod 0755 # folder
find /var/www -type f -print0 | xargs -0 chmod 0644 # files
change /v...
How to convert a number to string and vice versa in C++
...5).
string to numeric
float stof(const string& str, size_t *idx = 0);
double stod(const string& str, size_t *idx = 0);
long double stold(const string& str, size_t *idx = 0);
int stoi(const string& str, size_t *idx = 0, int base = 10);
...