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Regex empty string or email
...ng or email
(^$|^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.(?:[a-zA-Z]{2}|com|org|net|edu|gov|mil|biz|info|mobi|name|aero|asia|jobs|museum)$)
matching empty string or email but also matching any amount of whitespace
(^\s*$|^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.(?:[a-zA-Z]{2}|com|org|net|edu|gov|mil|biz|inf...
Best dynamic JavaScript/JQuery Grid [closed]
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you can try http://datatables.net/
DataTables is a plug-in for the jQuery Javascript library. It is a highly flexible tool, based upon the foundations of progressive enhancement, which will add advanced interaction controls to any HTML table. Key feature...
Why check both isset() and !empty()
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isset() tests if a variable is set and not null:
http://us.php.net/manual/en/function.isset.php
empty() can return true when the variable is set to certain values:
http://us.php.net/manual/en/function.empty.php
To demonstrate this, try the following code with $the_var unassigned, set ...
How can I generate UUID in C#
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Be careful: while the string representations for .NET Guid and (RFC4122) UUID are identical, the storage format is not. .NET trades in little-endian bytes for the first three Guid parts.
If you are transmitting the bytes (for example, as base64), you can't just use Guid.ToB...
Array.Copy vs Buffer.BlockCopy
...es most of the common "gotchas" to the extent possible. Tests were run in .NET 4.0 Release mode on both a 32-bit machine and a 64-bit machine. Results were averaged over 20 testing runs, in which each run had 1 million trials per method. Primitive types tested were byte (1 byte), int (4 bytes), and ...
C++ include and import difference
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#import is a Microsoft-specific thing, apparently for COM or .NET stuff only.
#include is a standard C/C++ preprocessor statement, used for including header (or occasionally other source code) files in your source code file.
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TargetedPatchingOptOut: “Performance critical to inline across NGen image boundaries”?
...uld clear the NGen store.
Note that this attribute is only useful in the .NET Framework assemblies. You don't need it in your own. You can find more information about that here: https://stackoverflow.com/a/14982340/631802
s...
What is the difference between Builder Design pattern and Factory Design pattern?
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@AdrianGrigore what if mix both of them??aso.net mvc have ControllerBuilder that have set and get method for ControllerFactory class
– AminM
Mar 30 at 17:44
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Java equivalent of C#'s verbatim strings with @
...ring Literals at 2018/01/23
See the progress at https://bugs.openjdk.java.net/browse/JDK-8196004
Probably some day you will be able to do it with:
`c:\afolder\afile`
UPDATE: JEP proposed to drop from JDK 12:326: Raw String Literals (Preview)
You can read the rationale here: http://mail.openjdk....
What's the difference between IQueryable and IEnumerable
I'm confused as to the difference. Being fairly new to .Net, I know I can query IEnumerables using the Linq extensions. So what is this IQueryable and how does it differ?
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