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Creating a UICollectionView programmatically
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Now how to add image in this programmatically collectionView ?
– ArgaPK
Jan 8 '18 at 12:45
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How do you downgrade rubygems?
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Updated November 2011: Now that RVM's out, try running rvm install rubygems <version>.
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Tetris-ing an array
...ies, so in interpreted languages this will have a huge efficiency gain...
Now, if you want only full paths, we need to truncate to the last / character. So:
$prefix = preg_replace('#/[^/]*$', '', commonPrefix($paths));
Now, it may overly cut two strings such as /foo/bar and /foo/bar/baz will be...
How can I include raw JSON in an object using Jackson?
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@Piotr the javadoc now says "Method that will produce (as of Jackson 2.10) valid JSON using default settings of databind, as String"
– bernie
Apr 28 at 20:11
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I forgot the password I entered during postgres installation
...local all all trust
to
host all all 127.0.0.1/32 trust
you can now connect as any user. Connect as the superuser postgres (note, the superuser name may be different in your installation. In some systems it is called pgsql, for example.)
psql -U postgres
or
psql -h 127.0.0.1 -U postgre...
Is there any way to delete local commits in Mercurial?
...eep those changes, just not commit them! Is there any way to recover them now??
– Tim Tisdall
Dec 14 '15 at 16:08
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Get to UIViewController from UIView?
... there a built-in way to get from a UIView to its UIViewController ? I know you can get from UIViewController to its UIView via [self view] but I was wondering if there is a reverse reference?
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How to delete history of last 10 commands in shell?
...06, then 1007 becomes 1006 and 1006 is deleted, then 1008 (became 1007) is now 1006 and gets deleted.
If I also wanted to delete the history delete command then it's a bit more complicated because you need to know the current max history entry.
You can get this with (there may be a better way):
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How to TryParse for Enum value?
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As mentioned by Lisa and Christian in the comments, Enum.TryParse is now available for C# in .NET4 and up.
MSDN Docs
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Detecting Unsaved Changes
...he form with the users previous entries - without firing the change-event. Now the form will be dirty, but the flag won't be set unless the user makes another edit.
– Oskar Berggren
Aug 31 '14 at 16:05
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