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Difference between virtual and abstract methods [duplicate]
...hod(int i)
{
// Default implementation which can be overridden by subclasses.
}
}
public class D : E
{
public override void AbstractMethod(int i)
{
// You HAVE to override this method
}
public override void VirtualMethod(int i)
{
// You are allowe...
When do you use Java's @Override annotation and why?
... is why I find dynamic langs so wrong (though 100% of my paid work is in ruby right now).
– Dan Rosenstark
Jan 10 '10 at 18:14
4
...
Adding additional data to select options using jQuery
... ...
});
});
// Plain old JavaScript
var sel = document.getElementById('select');
var selected = sel.options[sel.selectedIndex];
var extra = selected.getAttribute('data-foo');
See this as a working sample using jQuery here: http://jsfiddle.net/GsdCj/1/
See this as a working sample using p...
Is it OK to leave a channel open?
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
Class method decorator with self arguments?
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
Python truncate a long string
...
First the whitespace in text is collapsed (all whitespace is replaced
by single spaces). If the result fits in the width, it is returned.
Otherwise, enough words are dropped from the end so that the remaining
words plus the placeholder fit within width:
>>> textwrap.shorten("Hello...
Variable's scope in a switch case [duplicate]
...s to it because java writer has made this not correct.
e.g. if statement by default take first line in its scope than what's wrong with cases where the end of case is explicitly closed by break statement. Hence the declaration in case 1: should not be available in case 2 and it has parallel scope ...
How to configure Fiddler to listen to localhost?
...
By simply adding fiddler to the url
http://localhost.fiddler:8081/
Traffic is routed through fiddler and therefore being displayed on fiddler.
sha...
What does @synchronized() do as a singleton method in objective C?
...events multiple threads from entering any region of code that is protected by a @synchronized directive referring to the same object. The object passed to the @synchronized directive is the object that is used as the "lock." Two threads can be in the same protected region of code if a different obje...
Create Django model or update if exists
... create or update an object, the .save() method already has this behaviour by default, from the docs:
Django abstracts the need to use INSERT or UPDATE SQL statements.
Specifically, when you call save(), Django follows this algorithm:
If the object’s primary key attribute is set to a value that e...