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How to get the index of an item in a list in a single step?
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It seems like all he wants is the index. List<>.FindIndex(Predicate<>) is the best approach. Though the question title would insinuate otherwise, the OP's description is pretty clear he only needs the index "int theThingIActual...
Changing overflow icon in the action bar
...sible to change the overflow icon in the action bar? I have blue icons for all ActionBar items and I also want to change the overflow icon when it appears.
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Ruby custom error classes: inheritance of the message attribute
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Given what the ruby core documentation of Exception, from which all other errors inherit, states about #message
Returns the result of invoking exception.to_s. Normally this returns
the exception’s message or name. By supplying a to_str method,
exceptions are agreeing to be used ...
What exactly does the .join() method do?
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join takes an iterable thing as an argument. Usually it's a list. The problem in your case is that a string is itself iterable, giving out each character in turn. Your code breaks down to this:
"wlfgALGbXOahekxSs".join("595")
which acts the same as this:
"wlfgALGbXOah...
#import using angle brackets < > and quote marks “ ”
I'm wondering what decides whether you're allowed to use <Header.h> or "Header.h" when you're importing files in Objective-C. So far my observation has been that you use the quote marks "" for files in your project that you've got the implementation source to, and angle brackets <>...
SQL Server - where is “sys.functions”?
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I find UDFs are very handy and I use them all the time.
I'm not sure what Microsoft's rationale is for not including a sys.functions equivalent in SQL Server 2005 (or SQL Server 2008, as far as I can tell), but it's easy enough to roll your own:
CREATE VIEW my_sys_...
Centering a div block without the width
...date 27 Feb 2015: My original answer keeps getting voted up, but now I normally use @bobince's approach instead.
.child { /* This is the item to center... */
display: inline-block;
}
.parent { /* ...and this is its parent container. */
text-align: center;
}
My original post for historical pur...
What is href=“#” and why is it used?
...ain use of anchor tags - <a></a> - is as hyperlinks. That basically means that they take you somewhere. Hyperlinks require the href property, because it specifies a location.
Hash:
A hash - # within a hyperlink specifies an html element id to which the window should be scrolled.
hre...
What is the difference between the Facade and Adapter Pattern?
...uld think of your universal remote control that you've set up to work with all your different stereo systems - you press "on" and it turns on your cable box, your receiver, and your TV. Maybe it's a really fancy home theater and it dims the lights and draws the shades too. That's a Facade - one bu...
iOS: Convert UTC NSDate to local Timezone
...eIntervalSince1970:seconds];
NSDateFormatter* df_utc = [[[NSDateFormatter alloc] init] autorelease];
[df_utc setTimeZone:[NSTimeZone timeZoneWithName:@"UTC"]];
[df_utc setDateFormat:@"yyyy.MM.dd G 'at' HH:mm:ss zzz"];
NSDateFormatter* df_local = [[[NSDateFormatter alloc] init] autorelease];
[df_lo...