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Add swipe to delete UITableViewCell
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@lase You might want to take a peek at an app called Dash. It enables you to search documentation and it's a lot snappier than browsing the web. It's also stored locally on your computer, so you don't need web access to look stuff up. You can also load up documentation f...
Checking images for similarity with OpenCV
...ethods. Proposed decades ago as a means to find picture simmilarities. The idea is that a forest will have a lot of green, and a human face a lot of pink, or whatever. So, if you compare two pictures with forests, you'll get some simmilarity between histograms, because you have a lot of green in bot...
How to loop over directories in Linux?
...ut is safe for directories with spaces in their names. Also, the separate calls to stuff are made in the same shell, which is why in my command we have to return back to the current directory with popd.
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Android SDK on a 64-bit linux machine
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@DonPark No, it is not risky. It is called multiarch.
– Léo Lam
May 1 '15 at 15:31
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How to check if a file exists in the Documents directory in Swift?
...n if the file is not there. I'm not very happy using an API where a lot of calls will result in an exception instead of a simple return value.
– Kendall Helmstetter Gelner
Feb 4 '17 at 22:11
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PHP PDO: charset, set names?
...is is probably the most elegant way to do it.
Right in the PDO constructor call, but avoiding the buggy charset option (as mentioned above):
$connect = new PDO(
"mysql:host=$host;dbname=$db",
$user,
$pass,
array(
PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
PDO::MYSQL_ATTR_INI...
How to take the first N items from a generator or list in Python? [duplicate]
...> list(next(generator) for _ in range(4))
[8, 9]
Notice that the last call asks for the next 4 when only 2 are remaining. The use of the list() instead of [] is what gets the comprehension to terminate on the StopIteration exception that is thrown by next().
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How do I URL encode a string
...AllowedCharacters:NSCharacterSet.URLQueryAllowedCharacterSet];
To specifically convert '&', you'll need to remove it from the url query set or use a different set, as '&' is allowed in a URL query:
NSMutableCharacterSet *chars = NSCharacterSet.URLQueryAllowedCharacterSet.mutableCopy;
[cha...
__lt__ instead of __cmp__
...parison operators" such as __lt__ . The rich comparison overloads are said to be preferred, but why is this so?
5 Answer...
Composer: how can I install another dependency without updating old ones?
... (> or * chars after the colons) found in composer.json! This can be avoided by using composer update vendor/package, but I wouldn't recommend making a habit of it, as you're one forgotten argument away from a potentially broken project…
Keep things sane and stick with composer require vendor/...