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Performance difference for control structures 'for' and 'foreach' in C#
...L_002f: endfinally
} // end handler
IL_0030: ret
} // end of method Test::IterateOverList
The compiler treats arrays differently, converting a foreach loop basically to a for loop, but not List<T>. Here's the equivalent code for an array:
static void IterateOverArray(object[] array)
...
How to enable PHP short tags?
...
We have a PHP coding test and occasionally receive submissions where the <?= short tag has been used. Unfortunately the assumption that this style is in use everywhere is a little naive and often comes from developers brought up on a diet of A...
Exception messages in English?
...
I am confused. I've tried following your answer and to test it I wanted my exception in french, so I did t.CurrentUICulture = new System.Globalization.CultureInfo("fr-FR"); and t.CurrentCulture = new System.Globalization.CultureInfo("fr-FR"); yet, the resulting exception was in E...
in javascript, how can i get the last character in a string [duplicate]
...
var myString = "Test3";
alert(myString[myString.length-1])
here is a simple fiddle
http://jsfiddle.net/MZEqD/
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What is a regular expression which will match a valid domain name without a subdomain?
...})\.?$, but be warned, you will let through people putting in domains like test or na, too!
– Tim Groeneveld
Sep 20 '16 at 1:23
...
Grep and Sed Equivalent for XML Command Line Processing
...ndows, Powershell has built-in functionality for reading and writing XML.
test.xml:
<root>
<one>I like applesauce</one>
<two>You sure bet I do!</two>
</root>
Powershell script:
# load XML file into local variable and cast as XML type.
$doc = [xml](Get-Con...
PHP: How to use array_filter() to filter array keys?
...), but it does offer the additional flexibility of performing an arbitrary test against the key, e.g. $allowed could contain regex patterns instead of plain strings.
You can also use ARRAY_FILTER_USE_BOTH to have both the value and the key passed to your filter function. Here's a contrived example ...
MySQL Creating tables with Foreign Keys giving errno: 150
...error message by running SHOW ENGINE INNODB STATUS; and then looking for LATEST FOREIGN KEY ERROR in the output.
For example, this attempt to create a foreign key constraint:
CREATE TABLE t1
(id INTEGER);
CREATE TABLE t2
(t1_id INTEGER,
CONSTRAINT FOREIGN KEY (t1_id) REFERENCES t1 (id));
fails...
How to link C++ program with Boost using CMake
...2 xy xy 4.0K May 28 19:23 ./
-rw-rw-r-- 1 xy xy 2.3M May 28 19:23 libboost_test_exec_monitor.a
-rw-rw-r-- 1 xy xy 2.2M May 28 19:23 libboost_unit_test_framework.a
.......
xy@xy:~/boost_install/lib$ ll -th include/
total 20K
drwxrwxr-x 110 xy xy 12K May 28 19:22 boost/
If you are interested in ho...
Most used parts of Boost [closed]
...:
regex
filesystem
thread
lexical_cast
program_options (just brilliant!)
test (for all my unit testing needs).
String algorithms
String tokenizer
format (type-safe printf style string formatting)
smart ptrs
Boost was a massive help when I wrote my first cross-platform app - without it I really w...