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Uses for the Java Void Reference Type?
...se/tutorial/java/generics/types.html "Type Parameter Naming Conventions By convention, type parameter names are single, uppercase letters."
– barlop
Feb 12 '15 at 6:29
4
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Java 8: Where is TriFunction (and kin) in java.util.function? Or what is the alternative?
....
In Java 8, constructive functions should be handled (most of the time) by using method references because there's not much advantage of using a constructive lambda function. They are a bit like static methods.
You can use them, but they have no real state.
The other type is the destructive one...
Recursive sub folder search and return files in a list python
...atest downvote, it occurred to me that glob is a better tool for selecting by extension.
import os
from glob import glob
result = [y for x in os.walk(PATH) for y in glob(os.path.join(x[0], '*.txt'))]
Also a generator version
from itertools import chain
result = (chain.from_iterable(glob(os.path....
Easy way to see saved NSUserDefaults?
...
You can check the values for each key in the array, returned by
[[[NSUserDefaults standardUserDefaults] dictionaryRepresentation] allKeys]
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maxlength ignored for input type=“number” in Chrome
...s, it is ignored.
So maxlength is ignored on <input type="number"> by design.
Depending on your needs, you can use the min and max attributes as inon suggested in his/her answer (NB: this will only define a constrained range, not the actual character length of the value, though -9999 to 999...
How does Stack Overflow generate its SEO-friendly URLs?
.../// hand-tuned for speed, reflects performance refactoring contributed
/// by John Gietzen (user otac0n)
/// </summary>
public static string URLFriendly(string title)
{
if (title == null) return "";
const int maxlen = 80;
int len = title.Length;
bool prevdash = false;
var...
Why does sys.exit() not exit when called inside a thread in Python?
... docs for sys.exit (just print sys.exit.__doc__):
Exit the interpreter by raising SystemExit(status).
If the status is omitted or None, it defaults to zero (i.e., success).
If the status is numeric, it will be used as the system exit status.
If it is another kind of object, it will be prin...
Automatic post-registration user authentication
...e session variable. The variables naming convention is _security_ followed by your firewall name, in this case main making _security_main
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Rails 3.1: Engine vs. Mountable App
...parent application.
Mountable Engine
The engine's namespace is isolated by default:
# my_engine/lib/my_engine/engine.rb
module MyEngine
class Engine < Rails::Engine
isolate_namespace MyEngine
end
end
With a mountable engine, the routes are namespaced and the parent app can bundl...
Creating stored procedure and SQLite?
... esoteric SQL language features, XML and/or Java extensions, tera- or peta-byte scalability, and so forth
Source : Appropriate Uses For SQLite
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