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Have a reloadData for a UITableView animate when changing
...xSet indexSetWithIndex:0] withRowAnimation:UITableViewRowAnimationFade];
From the documentation:
Calling this method causes the table view to ask its data source for
new cells for the specified sections. The table view animates the
insertion of new cells in as it animates the old cells out...
Avoid passing null as the view root (need to resolve layout parameters on the inflated layout's root
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@Coeffect but what should I use when inflating from within the Activity? What should I use instead of parent?
– Alexander Kuznetsov
Oct 16 '14 at 18:40
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Identifying the dependency relationship for python packages installed with pip
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An updated version of the script from my previous comment is pip freeze | grep -v "\-e" | sed s/\=\=.*// | awk 'system("pip show " $1)' | grep -E '^(Name:|Requires:)' | sed s/Name:/\\\nName:/ -- but it seems that pipdeptree is now a better solution.
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How to get rid of the 'undeclared selector' warning
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Have a look at NSSelectorFromString.
SEL selector = NSSelectorFromString(@"setError:");
if ([self respondsToSelector:selector])
It will allow you to create a selector at runtime, instead of at compile time through the @selector keyword, and the co...
How to detect responsive breakpoints of Twitter Bootstrap 3 using JavaScript?
...g RBT in head section, instead of body? That would prevent visibility divs from being added to body, thus breaking the functionality.
– Maciej Gurban
Apr 30 '15 at 8:17
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JavaScript hide/show element
... It may be needed if you don't want to let JavaScript change the url from yourdomain.com/ to yourdomain.com/# ... furthermore, the scrolling of the window may jump, or any other non considered problem may occur.
– Sascha Galley
Sep 24 '11 at 0:30
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How to deal with page breaks when printing a large HTML table
...nÜnür It's not a requirement, so you can't rely on it, and unfortunately from my testing I can see that webkit saw "may" and ignored anything beyond it. Strangely, IE's got some rather nice large table printing support. Never thought I'd sing its praises on any given point.
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Why does !{}[true] evaluate to true in JavaScript?
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Because
{}[true]
evaluates to undefined, and !undefined is true.
From @schlingel:
true is used as key and {} as hash map. There doesn't exist an property with the key true so it returns undefined. Not undefined is true, as expected.
Console session (Node.js [0.10.17]):
> {}[true]
und...
Difference between single and double quotes in Bash
...mple examples.
Single quotes can be used around text to prevent the shell from interpreting any special characters. Dollar signs, spaces, ampersands, asterisks and other special characters are all ignored when enclosed within single quotes.
$ echo 'All sorts of things are ignored in single quotes...
How do I auto-hide placeholder text upon focus using css or jquery?
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This makes it go but when I click away from the field it remains blank.
– LondonGuy
Mar 14 '12 at 17:41
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