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Why doesn't ruby support method overloading?
...'t even make sense in Ruby. It is basically a synonym for "static argument-based dispatch", but Ruby doesn't have static dispatch at all. So, the reason why Ruby doesn't support static dispatch based on the arguments, is because it doesn't support static dispatch, period. It doesn't support static d...
What's the meaning of Base SDK, iOS deployment target, Target, and Project in xcode
Say I set base SDK to 7, what does it mean? It could mean that the app would run on iOS 7. But that's what iOS deployment target is for.
...
How do I check (at runtime) if one class is a subclass of another?
...more complete example with some assertions:
#!/usr/bin/env python3
class Base:
pass
class Derived(Base):
pass
base = Base()
derived = Derived()
# Basic usage.
assert issubclass(Derived, Base)
assert not issubclass(Base, Derived)
# True for same object.
assert issubclass(Base, Base)
# ...
Can I set the height of a div based on a percentage-based width? [duplicate]
Let's say I've got a div that has a width of 50% of the body. How do I make its height equal to that value? So that when the browser window is 1000px wide, the div's height and width are both 500px.
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Using “super” in C++
...time C++ was standardized.
Dag Bruck proposed this extension, calling the base class "inherited." The proposal mentioned the multiple inheritance issue, and would have flagged ambiguous uses. Even Stroustrup was convinced.
After discussion, Dag Bruck (yes, the same person making the proposal) wr...
AngularJS routing without the hash '#'
...the following contents (adjust for your needs):
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_URI} !^(/index\.php|/img|/js|/css|/robots\.txt|/favicon\.ico)
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ./index.html [L]
Users will ...
Multi-key dictionary in c#? [duplicate]
...
Many good solutions here,
What I am missing here is an implementation based on the build in Tuple type, so I wrote one myself.
Since it just inherits from Dictionary<Tuple<T1,T2>, T> you can always use both ways.
var dict = new Dictionary<int, int, Row>();
var row = new Row(...
How do you declare an interface in C++?
...do I setup a class that represents an interface? Is this just an abstract base class?
15 Answers
...
Double vs. BigDecimal?
...g with prices you want to use BigDecimal. And if you store them in the database you want something similar.
– extraneon
Aug 5 '10 at 11:46
106
...
Ruby optional parameters
... attributes to methods. The closest you can get is to pass nil:
ldap_get(base_dn, filter, nil, X)
However, this will set the scope to nil, not LDAP::LDAP_SCOPE_SUBTREE.
What you can do is set the default value within your method:
def ldap_get(base_dn, filter, scope = nil, attrs = nil)
scope ...