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Sort NSArray of date strings or objects
...[NSArray sortedArrayUsingSelector: or -[NSMutableArray sortUsingSelector:] and pass @selector(compare:) as the parameter. The -[NSDate compare:] method will order dates in ascending order for you. This is simpler than creating an NSSortDescriptor, and much simpler than writing your own comparison fu...
wait() or sleep() function in jquery?
I want to add a class, wait 2 seconds and add another class.
8 Answers
8
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Cannot find module cv2 when using OpenCV
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First do run these commands inside Terminal/CMD:
conda update anaconda-navigator
conda update navigator-updater
Then the issue for the instruction below will be resolved
For windows if you have anaconda installed, you can simply do
pip install...
How to drop a table if it exists?
... dbo.Scores
No. That will drop the table only if it contains any rows (and will raise an error if the table does not exist).
Instead, for a permanent table you can use
IF OBJECT_ID('dbo.Scores', 'U') IS NOT NULL
DROP TABLE dbo.Scores;
Or, for a temporary table you can use
IF OBJECT_ID('...
How do I change the title of the “back” button on a Navigation Bar
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you can create a custom BaseViewController and put it in to -viewDidLoad:
– ArtFeel
Sep 6 '13 at 15:14
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jQuery animate backgroundColor
...e UI library. Of course you'll want to use a decent version of the plugin and not some buggy old thing which doesn't handle Safari and crashes when the transitions are too fast. Since a minified version isn't supplied you might like test various compressors and make your own min version. YUI gets...
Javascript swap array elements
...lizing the temporary variable approach as it's cross-language (e.g. C/C++) and the first approach that usually pops into my mind.
– Ultimater
Aug 15 '18 at 7:22
3
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How do I instantiate a Queue object in java?
...on's is more clear. I will +1 this if you update it to mention concurrency and get rid of the code for anonymous classes... I think it makes the answer more confusing for someone that wants to know what to do because they almost surely don't want to do that. (Even if they wanted their own class, the...
Echo newline in Bash prints literal \n
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The OP asked about echo, not printf; and @choroba's answer below, which uses the -e option, fills the bill perfectly.
– JESii
May 27 '15 at 13:46
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Can I add jars to maven 2 build classpath without installing them?
Maven2 is driving me crazy during the experimentation / quick and dirty mock-up phase of development.
24 Answers
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