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Nested classes' scope?
...lematic though. The way to deal with it is using a weak reference. You can read documentation on weakref (2.7) or weakref (3.5)
– guyarad
Sep 1 '16 at 5:37
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Handling a Menu Item Click Event - Android
...ty once a Menu Item is clicked, but I'm not sure how to do this. I've been reading through the android documentation, but my implementation isn't correct..and some guidance in the right direction would help. I've listed my code below and commented out my problem areas, I think I'm invoking the wrong...
Why doesn't java.util.Set have get(int index)?
...e typically the people who didn't pay attention in database class (or when reading the documentation or tutorials) when it was explained to them, up front, that query results do not have a guaranteed ordering.
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Just disable scroll not hide it?
... page will stand in its place, no matter if you're on top or if you have already scrolled.
Css
.noscroll { position: fixed; overflow-y:scroll }
JS
$('body').css('top', -(document.documentElement.scrollTop) + 'px')
.addClass('noscroll');
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dynamic_cast and static_cast in C++
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But, to help you understand RTTI (and thus dynamic_cast) more, you should read up on the <typeinfo> header, and the typeid operator. This returns the type info corresponding to the object you have at hand, and you can inquire various (limited) things from these type info objects.
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JavaScript plus sign in front of function expression
...essions. It's not clear at all what + is doing in this case if you don't already know this arcane quirk of js.
– Chris
Nov 13 '12 at 19:03
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ruby inheritance vs mixins
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I just read about this topic in The Well-Grounded Rubyist (great book, by the way). The author does a better job of explaining than I would so I'll quote him:
No single rule or formula always results in the right design. But it...
How can I brew link a specific version?
...For detailed info on all the ways to install an older version of a formula read this answer.
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Django: Get an object form the DB, or 'None' if nothing matches
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@TomaszGandor: Yeah, it is clumsy and difficult to read, whatever your favorite language tutorial says. When I see an exception I suppose that something non-standard is happening. Readability counts. But I agree when there's no other reasonable option, you should go for it an...
How to show and update echo on same line
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Well I did not read correctly the man echo page for this.
echo had 2 options that could do this if I added a 3rd escape character.
The 2 options are -n and -e.
-n will not output the trailing newline. So that saves me from going to a new...