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How to sort a NSArray alphabetically?
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I get an error when I try to sort an array of strings this way, because name is not a valid key. What key do I use to sort strings alphabetically with an NSSortDescriptor?
– temporary_user_name
N...
When does ADT set BuildConfig.DEBUG to false?
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Causes compile-time error: «Avoid hardcoding the debug mode; leaving it out allows debug and release builds to automatically assign one»
– Nikita Bosik
Apr 7 '15 at 21:30
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How to call a method after a delay in Android
...n! This doesn't run on UI thread. Running this on ui thread caused a Fatal Error: android.view.ViewRootImpl$CalledFromWrongThreadException: Only the original thread that created a view hierarchy can touch its views.
– vovahost
Oct 28 '15 at 11:29
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Keep only date part when using pandas.to_datetime
...e'], utc=False)
You will be able to save it in excel without getting the error "ValueError: Excel does not support datetimes with timezones. Please ensure that datetimes are timezone unaware before writing to Excel."
sha...
In where shall I use isset() and !empty()
...d only for variables and not just values, so isset("foobar") will raise an error. As of PHP 5.5, empty supports both variables and expressions.
So your first question should rather be if isset returns true for a variable that holds an empty string. And the answer is:
$var = "";
var_dump(isset($var...
How to use PyCharm to debug Scrapy projects
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(<type 'exceptions.SyntaxError'>, SyntaxError("Non-ASCII character '\\xf3' in file /Library/python/2.7/site-packages/scrapy/cmdline.pyc on line 1, but no encoding declared;
– Aymon Fournier
Dec 6 '14 at 3:40
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How do I get Fiddler to stop ignoring traffic to localhost?
...ceiving server running on your machine.
This avoids "host not recognised" errors when connecting to WCF services with the built in web server that visual studio uses.
i.e. Instead of
http://localhost:51900/service.wcf you can use http://localhost.fiddler:51900/service.wcf
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Easiest way to flip a boolean value?
...;first().lights[PATTERN1_LIGHT + i].value ^= 1 is much more readable, less error prone, and fewer characters than the original code.
– Vortico
Oct 31 '17 at 10:40
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Check if a number is int or float
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@David: issubclass would be an error, as it works on classes. isinstance checks if a given object is an instance of a class or one of that class's subclasses, so it's perfectly generic. Methinks that isinstance(obj, cls) is equivalent to issubclass(obj.__c...
How can I use a file in a command and redirect output to the same file without truncating it?
... Word of caution, "sponge" is destructive, so if you have an error in your command, you can wipe out your input file (as I did the first time trying sponge). Make sure your command works, and/or the input file is under version control if you are trying to iterate on making the command ...