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Dashed line border around UIView
...:yourView.bounds].CGPath;
[yourView.layer addSublayer:yourViewBorder];
Swift 3.1
var yourViewBorder = CAShapeLayer()
yourViewBorder.strokeColor = UIColor.black.cgColor
yourViewBorder.lineDashPattern = [2, 2]
yourViewBorder.frame = yourView.bounds
yourViewBorder.fillColor = nil
yourViewBorder.path...
Is there a Mutex in Java?
...acle.com/technetwork/articles/javase/index-140767.html
It has a slightly different pattern which is (I think) what you are looking for:
try {
mutex.acquire();
try {
// do something
} finally {
mutex.release();
}
} catch(InterruptedException ie) {
// ...
}
In this usage, you're ...
How to download a file from server using SSH? [closed]
... the username, host, remote filename, and local directory as appropriate.
If you want to access EC2 (or other service that requires authenticating with a private key), use the -i option:
scp -i key_file.pem your_username@remotehost.edu:/remote/dir/foobar.txt /local/dir
From: http://www.hypexr.or...
Two statements next to curly brace in an equation
... { ), and on the right-hand side next to the curly, two statements in two different lines?
5 Answers
...
Does Redis persist data?
...abase that guarantees data consistency. Therefore its use cases typically differ from those of real databases:
You can, for example, store sessions, performance counters or whatever in it with unmatched performance and no real loss in case of a crash. But processing orders/purchase histories and so ...
Remove empty strings from a list of strings
...
If you're that pressed for performance, itertool's ifilter is even faster—>>> timeit('filter(None, str_list)', 'str_list=["a"]*1000', number=100000) 2.3468542098999023; >>> timeit('itertools.ifilter(None, ...
jQuery .hasClass() vs .is()
...only checks for a class being set or not.
Hence, hasClass should be faster if performance at any level is your priority.
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Dynamic variable names in Bash
... magic_variable[$1]=$( ls | tail -1 )
echo ${magic_variable[$1]}
}
If you can't use associative arrays (e.g., you must support bash 3), you can use declare to create dynamic variable names:
declare "magic_variable_$1=$(ls | tail -1)"
and use indirect parameter expansion to access the valu...
const char* concatenation
... hard coded array size. That's a really bad habit to get into, especially if you don't know what size "one" and "two" are.
– Paul Tomblin
Jan 3 '10 at 15:58
1
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Why use the SQL Server 2008 geography data type?
...
If you plan on doing any spatial computation, EF 5.0 allows LINQ Expressions like:
private Facility GetNearestFacilityToJobsite(DbGeography jobsite)
{
var q1 = from f in context.Facilities
let...