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Why is lock(this) {…} bad?
...esigner/creator knowing about it. This increases the complexity of multi-threaded solutions and might affect their correctness.
A private field is usually a better option as the compiler will enforce access restrictions to it, and it will encapsulate the locking mechanism. Using this violates encap...
When is .then(success, fail) considered an antipattern for promises?
...bit odd, this is actually what python has try-except-else for (recommended reading!).
// some_promise_call().then(logger.log).catch(logger.log)
try {
var results = some_call();
logger.log(results);
} catch(e) {
logger.log(e);
}
The catch logger will also handle exceptions from the suc...
How do I load a PHP file into a variable?
...
If you are using http://, as eyze suggested, you will only be able to read the ouput of the PHP script. You can only read the PHP script itself if it is on the same server as your running script.
You could then use something like
$Vdata = file_get_contents('/path/to/your/file.php");
...
Choosing the best concurrency list in Java [closed]
My thread pool has a fixed number of threads. These threads need to write and read from a shared list frequently.
6 An...
not None test in Python [duplicate]
... not (val is None):
# ...
this is simply part of the Zen of Python: "Readability counts." Good Python is often close to good pseudocode.
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Cross-browser multi-line text overflow with ellipsis appended within a fixed width and height
...ould something similar to a binary search: test to see if the text block already fits, otherwise split the text into words or characters and define your bounds (lower=1 word/chars, upper=all words/chars), while ((upper-lower)>1) {let middle=((lower+upper)/2)|0 /*|0 is quick floor*/; if (test(word...
Checking if a variable is defined?
...Meuret Sort of, not really. -- while it may not seem identical, it's worth reading the answers on that question.
– Fund Monica's Lawsuit
Mar 8 '16 at 19:42
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How can I pass command-line arguments to a Perl program?
...guments as input files, you can just pass them in and then use <> to read their contents.
If they have a different meaning, you can use GetOpt::Std and GetOpt::Long to process them easily. GetOpt::Std supports only single-character switches and GetOpt::Long is much more flexible. From GetOpt:...
Biggest advantage to using ASP.Net MVC vs web forms
...t doesn't make you jump through hoops to do so. So maybe that point should read something like 'makes SoC easier to implement'
– Erik van Brakel
Jan 25 '09 at 23:21
4
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What is the difference between varchar and nvarchar?
...ther than varchar, you can avoid doing encoding conversions every time you read from or write to the database. Conversions take time, and are prone to errors. And recovery from conversion errors is a non-trivial problem.
If you are interfacing with an application that uses only ASCII, I would still...