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Why is @autoreleasepool still needed with ARC?
...et rid of retains, releases and autoreleases, it just adds in the required ones for you. So there are still calls to retain, there are still calls to release, there are still calls to autorelease and there are still auto release pools.
One of the other changes they made with the new Clang 3.0 compi...
Remove new lines from string and replace with one empty space
... single newlines in between words. This is not present in the example, but one can easily see how that situation could occur. An alternative is to do the following:
$string = trim(preg_replace('/\s+/', ' ', $string));
shar...
SQL update fields of one table from fields of another one
...agree with @cluesque, but this answer is an excellent way to use values in one column in a table as a lookup table for replacing values in a column in another table (see SO 21657475), so +1 ...
– Victoria Stuart
May 8 '18 at 18:07
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How to get RelativeLayout working with merge and include?
...cient by converting from using several levels of nested LinearLayouts to one RelativeLayout and have come across a few problems that I haven not been able to find a workaround for...
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How to get multiple counts with one SQL query?
...method works just as nicely if you're combining lots of tables together in one query, as using sub-queries can get quite messy in that instance.
– Darren Crabb
Oct 8 '15 at 11:24
7...
What is the best Distributed Brute Force countermeasure?
...m winning (so to speak). But I've run into a pretty non-trivial challenge (one that most auth libraries miss entirely, but I insist on handling it properly): how to deal intelligently with large-scale, distributed, variable-username brute-force attacks .
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Subtract one day from datetime
...he above will give you 2013-03-31 16:25:00.250.
It takes you back exactly one day and works on any standard date-time or date format.
Try running this command and see if it gives you what you are looking for:
SELECT DATEADD(day,-1,@CreatedDate)
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List all files in one directory PHP [duplicate]
What would be the best way to list all the files in one directory with PHP? Is there a $_SERVER function to do this? I would like to list all the files in the usernames/ directory and loop over that result with a link, so that I can just click the hyperlink of the filename to get there. Thanks!
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Regular expression to allow spaces between words
... that * means zero or more, it would match all of the following cases that one would not usually mean to match:
An empty string, "".
A string comprised entirely of spaces, " ".
A string that leads and / or trails with spaces, " Hello World ".
A string that contains multiple spac...
String is immutable. What exactly is the meaning? [duplicate]
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At this point in the example above, we have two String objects: the first one we created with value "knowledge", pointed to by s, and the second one "knowledge base", pointed to by str. But, technically, we have three String objects, the third one being the literal "base" in the concat statement.
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