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Java regex capturing groups indexes
...oup numbers are used in back-reference \n in pattern and $n in replacement string.
In other regex flavors (PCRE, Perl), they can also be used in sub-routine calls.
You can access the text matched by certain group with Matcher.group(int group). The group numbers can be identified with the rule stat...
How do sessions work in Express.js with Node.js?
...connect-redis).
Details
Express.js/Connect creates a 24-character Base64 string using utils.uid(24) and stores it in req.sessionID. This string is then used as the value in a cookie.
Client Side
Signed cookies are always used for sessions, so the cookie value will have the following format.
[si...
Do C# Timers elapse on a separate thread?
...les the collision for you
try putting this in a console
static void Main(string[] args)
{
Debug.WriteLine(Thread.CurrentThread.ManagedThreadId);
var timer = new Timer(1000);
timer.Elapsed += timer_Elapsed;
timer.Start();
Console.ReadLine();
}
static void timer_Elapsed(object s...
SQL-Server: Is there a SQL script that I can use to determine the progress of a SQL Server backup or
... the active transactions. The currently running backup(s) will contain the string "BACKUP" in the requestCommand field. The aptly named percentComplete field will give you the progress of the backup.
Note: sp_who2k5 should be a part of everyone's toolkit, it does a lot more than just this.
...
ASP.NET MVC controller actions that return JSON or partial html
...at then evaluates the Json object returned.
If you want to return a plain string, you can just use the ContentResult:
public ActionResult SomeActionMethod() {
return Content("hello world!");
}
ContentResult by default returns a text/plain as its contentType.
This is overloadable so you can a...
How can I detect if this dictionary key exists in C#?
...if (entry.Street != null)
{
row["HomeStreet"] = entry.Street.ToString();
}
}
...with the inner conditional repeated as necessary for each key required. The TryGetValue is only done once per PhysicalAddressKey (Home, Work, etc).
...
form serialize javascript (no framework)
...cent browsers), use this:
new URLSearchParams(new FormData(formElement)).toString()
Everywhere except IE
For browsers that support URLSearchParams but not the FormData(formElement) constructor, use this FormData polyfill and this code (works everywhere except IE):
new URLSearchParams(Array.from(new...
How to specify mapping rule when names of properties differ
... LookupDetailsBO
{
public int ID { get; set; }
public string Description { get; set; }
}
and the other class is
public class MaterialBO
{
[MapTo(nameof(LookupDetailsBO.ID))]
public int MaterialId { get; set; }
[MapTo(nameof(LookupDetailsBO.Desc...
what is the best way to convert a json formatted key value pair to ruby hash with symbol as key?
...
using the json gem when parsing the json string you can pass in the symbolize_names option. See here: http://flori.github.com/json/doc/index.html (look under parse)
eg:
>> s ="{\"akey\":\"one\",\"bkey\":\"two\"}"
>> JSON.parse(s,:symbolize_names => ...
How to get the name of a class without the package?
...name of the underlying class as given in the source code. Returns an empty string if the underlying class is anonymous.
The simple name of an array is the simple name of the component type with "[]" appended. In particular the simple name of an array whose component type is anonymous is "[]".
It is...