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Do C# Timers elapse on a separate thread?
...umentation on Timers states:
The System.Threading.Timer class makes
callbacks on a ThreadPool thread and
does not use the event model at all.
So indeed the timer elapses on a different thread.
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how to use “AND”, “OR” for RewriteCond on Apache?
... is the actual implementation where you'll find the loop that goes through all the RewriteConditions a RewriteRule has, and what it basically does is (stripped, comments added for clarity):
# loop through all Conditions that precede this Rule
for (i = 0; i < rewriteconds->nelts; ++i) {
re...
Check if a string contains one of 10 characters
...tion) >= 0;
}
That way you don't end up creating a new array on each call. The string is also easier to scan than a series of character literals, IMO.
Of course if you're only going to use this once, so the wasted creation isn't a problem, you could either use:
private const string Punctuatio...
Why does Azure deployment take so long?
I'm trying to understand why it can take from 20-60min to deploy a small application to Azure (using the configuration/package upload method, not from within VS).
...
How to change the value of attribute in appSettings section with Web.config transformation
... for native applications. The syntax, however, should be identical if I recall (it's been a while since I had to use Slow Cheetah).
– Ellesedil
Apr 11 '16 at 21:45
...
Git pull results in extraneous “Merge branch” messages in commit log
...ine. A pull effectively runs git fetch and then git merge so a merge is usually happening when you run git pull.
The alternative to use rebasing instead of merging is possible, but usually you should avoid it. Rebasing allows you to keep a linear history, but also removes any information about the ...
if A vs if A is not None:
...
The statement
if A:
will call A.__nonzero__() (see Special method names documentation) and use the return value of that function. Here's the summary:
object.__nonzero__(self)
Called to implement truth value testing and the built-in operation ...
Django using get_user_model vs settings.AUTH_USER_MODEL
...s.AUTH_USER_MODEL will delay the retrieval of the actual model class until all apps are loaded. get_user_model will attempt to retrieve the model class at the moment your app is imported the first time.
get_user_model cannot guarantee that the User model is already loaded into the app cache. It mi...
Why does scanf() need “%lf” for doubles, when printf() is okay with just “%f”?
...cross-use" %lf with float or %f with double.
But there's no reason to actually do it in practice. Don't use %f to printf arguments of type double. It is a widespread habit born back in C89/90 times, but it is a bad habit. Use %lf in printf for double and keep %f reserved for float arguments.
...
CSS does the width include the padding?
...width: 10em; padding: 2em; border: 1em; }
would be 10em wide.
In contrast, all standards-fearing browsers default to the "content-box" box model. In this model, the width of an element does not include padding or borders. For example:
#foo { width: 10em; padding: 2em; border: 1em; }
will actually be...