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Some questions about Automatic Reference Counting in iOS5 SDK
...lly, there are still legitimate reasons to write a dealloc method, such as freeing non-retainable resources. Failing to call [super dealloc] in such a method is nearly always a bug.
You enable ARC using a new -fobjc-arc
compiler flag. ARC is supported in
Xcode 4.2 for Mac OS X v10.6 and v10....
Matching an empty input box using CSS
...order: 1px solid red; /* Red border only if the input is empty */
}
More info and browser support: https://css-tricks.com/almanac/selectors/p/placeholder-shown/
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Convert datetime object to a String of date only in Python
...12, 2, 23, 0, 0)
t.strftime('%m/%d/%Y')
will yield:
'02/23/2012'
More information about formatting see here
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Get DateTime.Now with milliseconds precision
...yy-MM-dd HH:mm:ss.fff",
CultureInfo.InvariantCulture);
(Note that unlike your sample, this is sortable and less likely to cause confusion around whether it's meant to be "month/day/year" or "day/month/year".)
...
How can I get the current date and time in UTC or GMT in Java?
...ation to the java.time classes.
Using the Joda-Time 3rd-party open-source free-of-cost library, you can get the current date-time in just one line of code.
Joda-Time inspired the new java.time.* classes in Java 8, but has a different architecture. You may use Joda-Time in older versions of Java. J...
MemoryCache does not obey memory limits in configuration
...s of times per second.
I have found the following configuration and usage frees the items every 5 seconds most of the time.
App.config:
Take note of cacheMemoryLimitMegabytes. When this was set to zero, the purging routine would not fire in a reasonable time.
<system.runtime.caching>...
Inserting a tab character into text using C#
...
Using Microsoft Winform controls, it is impossible to solve correctly your problem without an little workaround that I will explain below.
PROBLEM
The problem in using simply "\t" or vbTab is that when more than one TextBox are displayed an...
Which browsers support ?
...ng with them closely on this, and it should come out soon (I hope!).
More info on ordered-async (aka, "async=false") can be found here: http://wiki.whatwg.org/wiki/Dynamic_Script_Execution_Order
Also, to test if a browser supports the new dynamic async property behavior: http://test.getify.com/tes...
Single script to run in both Windows batch and Linux Bash?
...t;"::CMDLITERAL"
@ECHO OFF
GOTO :CMDSCRIPT
::CMDLITERAL
echo "I can write free-form ${SHELL} now!"
if :; then
echo "This makes conditional constructs so much easier because"
echo "they can now span multiple lines."
fi
exit $?
:CMDSCRIPT
ECHO Welcome to %COMSPEC%
Universal comments, of course...
IOS: create a UIImage or UIImageView with rounded corners
...rImageView.clipsToBounds = YES;
See the CALayer class reference for more info.
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