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How can we match a^n b^n with Java regex?
...ions.
Step 2: Capturing in a lookahead (and f r e e - s p a c i n g mode)
Now let's say that even though we don't want the b+ to be part of the match, we do want to capture it anyway into group 1. Also, as we anticipate having a more complicated pattern, let's use x modifier for free-spacing so we ...
Setting the default value of a DateTime Property to DateTime.Now inside the System.ComponentModel De
Does any one know how I can specify the Default value for a DateTime property using the System.ComponentModel DefaultValue Attribute?
...
Calling clojure from java
...tory structure using Leiningen:
C:\projects>lein new com.domain.tiny
Now, change to the project directory.
C:\projects>cd com.domain.tiny
In the project directory, open the project.clj file and edit it such that the contents are as shown below.
(defproject com.domain.tiny "0.1.0-SNAPSHO...
How to change time in DateTime?
... s = ...;
TimeSpan ts = new TimeSpan(10, 30, 0);
s = s.Date + ts;
s will now be the same date, but at 10.30am.
Note that DateTime disregards daylight saving time transitions, representing "naive" Gregorian time in both directions (see Remarks section in the DateTime docs). The only exceptions are...
set DateTime to start of month
...
var now = DateTime.Now;
var startOfMonth = new DateTime(now.Year,now.Month,1);
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Cleanest way to write retry logic?
... }
throw new AggregateException(exceptions);
}
}
You can now use this utility method to perform retry logic:
Retry.Do(() => SomeFunctionThatCanFail(), TimeSpan.FromSeconds(1));
or:
Retry.Do(SomeFunctionThatCanFail, TimeSpan.FromSeconds(1));
or:
int result = Retry.Do(SomeF...
SQL Server equivalent of MySQL's NOW()?
...trying to get a datetime field to show the current time. In MySQL I'd use NOW() but it isn't accepting that.
4 Answers
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How can I add new keys to a dictionary?
... value is in the end too. Anyway answer has been edited and is much better now. Updating with a dictionary is good when it's likely that it contains many items.
– Jean-François Fabre♦
Jan 20 at 16:26
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Can C++ code be valid in both C++03 and C++11 but do different things?
...e plus side there is:
Code that previously implicitly copied objects will now implicitly move them when possible.
On the negative side, several examples are listed in the appendix C of the standard. Even though there are many more negative ones than positive, each one of them is much less likely t...
Can I export a variable to the environment from a bash script without sourcing it?
... is to source the variable:
. ./export.bash
or
source ./export.bash
Now when echoing from main shell it works
echo $VAR
HELLO, VARABLE
We will now reset VAR
export VAR=""
echo $VAR
Now we will execute a script to source the variable then unset it :
./test-export.sh
HELLO, VARABLE
--
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