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In Python, if I return inside a “with” block, will the file still close?
... experiment to show the guarantee you get from the finally keywrod is: def test(): try: return True; finally: return False.
– Ehsan Kia
Jul 11 '14 at 19:57
...
Convert a PHP object to an associative array
...
class Test{
const A = 1;
public $b = 'two';
private $c = test::A;
public function __toArray(){
return call_user_func('get_object_vars', $this);
}
}
$my_test = new Test();
var_dump((array)$my_test);
var...
Is the != check thread safe?
...
In the absence of synchronization this code
Object a;
public boolean test() {
return a != a;
}
may produce true. This is the bytecode for test()
ALOAD 0
GETFIELD test/Test1.a : Ljava/lang/Object;
ALOAD 0
GETFIELD test/Test1.a : Ljava/lang/Object;
IF_ACMPEQ L1
...
a...
Bash/sh - difference between && and ;
...because a long time ago at the nearby computer:
root# pwd
/
root# cd /tnp/test; rm -rf *
cd: /tnp/test: No such file or directory
...
... and after a while ...
...
^C
but not helped... ;)
cd /tnp/test && rm -rf * is safe... ;)
...
Connection pooling options with JDBC: DBCP vs C3P0
...e. Some time back we conducted an in-house analysis of the two, creating a test fixture which generated load and concurrency against the two to assess their suitability under real life conditions.
DBCP consistently generated exceptions into our test application and struggled to reach levels of per...
Check if user is using IE
...
/Edge\/|Trident\/|MSIE /.test(window.navigator.userAgent) I know this works on 10 and 11. If you can verify <IE9 and Edge, edit answer.
– Indolering
May 5 '15 at 23:59
...
Copy file remotely with PowerShell
....
It's much easier this way.
Copy-Item -Path \\serverb\c$\programs\temp\test.txt -Destination \\servera\c$\programs\temp\test.txt;
By using UNC paths instead of local filesystem paths, you help to
ensure that your script is executable from any client system with
access to those UNC path...
Custom exception type
...at stack traces work on Firefox and other browsers. It satisfies the same tests that he posted:
Usage:
throw new InvalidArgumentException();
var err = new InvalidArgumentException("Not yet...");
And it will behave is expected:
err instanceof InvalidArgumentException // -> true
err ...
Java 8 NullPointerException in Collectors.toMap
...ault non-overloaded version instead. Maybe merge is faster, but I have not tested.
– Brett Ryan
Oct 19 '15 at 12:59
1
...
How to reference generic classes and methods in xml documentation
...t completely resolves.
If the method in the OP were in a namespace called Test, the completely resolved link to the method shown would be:
<see cref="M:Test.FancyClass`1.FancyMethod``1(`0)"/>
As you may be able to work out, there should only be one backtick before the number of class type p...