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When exactly is it leak safe to use (anonymous) inner classes?
...class LeakFactory
{//Just so that we have some data to leak
int myID = 0;
// Necessary because our Leak class is an Inner class
public Leak createLeak()
{
return new Leak();
}
// Mass Manufactured Leak class
public class Leak
{//Again for a little data.
int si...
How do I debug Node.js applications?
...
+50
node-inspector could save the day! Use it from any browser supporting WebSocket. Breakpoints, profiler, livecoding, etc... It is reall...
Is there a conditional ternary operator in VB.NET?
...
605
Depends upon the version. The If operator in VB.NET 2008 is a ternary operator (as well as a n...
In MySQL queries, why use join instead of where?
...
Where supported (Oracle 9i+, PostgreSQL 7.2+, MySQL 3.23+, SQL Server 2000+), there is no performance benefit to using either syntax over the other. The optimizer sees them as the same query. But more complex queries can benefit from using ANSI-92 syntax:
Ability to control JOIN order - the ...
What is “rvalue reference for *this”?
...t;
t.f(); // lvalue
test().f(); // rvalue
}
Output:
$ clang++ -std=c++0x -stdlib=libc++ -Wall -pedantic t.cpp
$ ./a.out
lvalue object
rvalue object
The whole thing is done to allow you to take advantage of the fact when the object the function is called on is an rvalue (unnamed temporary, for ...
How do I implement __getattribute__ without an infinite recursion error?
...ad, it works:
class D(object):
def __init__(self):
self.test=20
self.test2=21
def __getattribute__(self,name):
if name=='test':
return 0.
else:
return object.__getattribute__(self, name)
This works because object (in this example) is...
What is the equivalent of the C++ Pair in Java?
...
404
In a thread on comp.lang.java.help, Hunter Gratzner gives some arguments against the presence o...
boolean in an if statement
...== entirely.
As an example of how confusing it can be:
var x;
x = 0;
console.log(x == true); // false, as expected
console.log(x == false); // true as expected
x = 1;
console.log(x == true); // true, as expected
console.log(x == false); // false as expected
x = 2;
console.l...
Change working directory in my current shell context when running Node script
...
10
The method changes the current working directory of the process, not the shell. As far as I know, changing the external cwd of a running pro...
how to compare two elements in jquery [duplicate]
....
Assuming:
<div id="a" class="a"></div>
this:
$('div.a')[0] == $('div#a')[0]
returns true.
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