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Can a CSV file have a comment?
...on-standard track (informational) documents. The entire process, including descriptions, processes and rules for IETF issued documents is defined by RFC2026 with some follow on amendments. Every RFC will specify at the beginning which track it is on.
– Steve Hole
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What is a good pattern for using a Global Mutex in C#?
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A tip: watch out using Mutex with ASP.NET: "The Mutex class enforces thread identity, so a mutex can be released only by the thread that acquired it. By contrast, the Semaphore class does not enforce thread identity.". An ASP.NET request can be serviced by mu...
Limit file format when using ?
...ation of MIME-type using both the file extension and its binary signature (ASP.NET, PHP, Ruby, Java). You might also want to refer to these tables for file types and their magic numbers, to perform a more robust server-side verification.
Here are three good reads on file-uploads and security.
EDIT: ...
MySQL: Order by field size/length
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SELECT * FROM TEST ORDER BY LENGTH(description) DESC;
The LENGTH function gives the length of string in bytes. If you want to count (multi-byte) characters, use the CHAR_LENGTH function instead:
SELECT * FROM TEST ORDER BY CHAR_LENGTH(description) DESC;
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How do I do a bulk insert in mySQL using node.js
...) and thought I'd share my solution:
const items = [
{name: 'alpha', description: 'describes alpha', value: 1},
...
];
db.query(
'INSERT INTO my_table (name, description, value) VALUES ?',
[items.map(item => [item.name, item.description, item.value])],
(error, results) =>...
What is (functional) reactive programming?
...I've also read the small article on functional reactive programming . The descriptions are quite abstract.
18 Answers
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How do I write unencoded Json to my View using Razor?
I'm trying to write an object as JSON to my Asp.Net MVC View using Razor, like so:
3 Answers
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Best Timer for using in a Windows service
...em.Web.UI.Timer and System.Windows.Forms.Timer, which are respectively for ASP applications and WinForms. Using those will cause the service to load an additional assembly which is not really needed for the type of application you are building.
Use System.Timers.Timer like the following example (al...
what is the basic difference between stack and queue?
...st out) data structure. The associated link to wikipedia contains detailed description and examples.
Queue is a FIFO (first in first out) data structure. The associated link to wikipedia contains detailed description and examples.
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What's the difference between Task.Start/Wait and Async/Await?
...ially async code in sync manner. await will not.
For example, you have an asp.net web application. UserA calls /getUser/1 endpoint. asp.net app pool will pick a thread from thread pool (Thread1) and, this thread will make a http call. If you do Wait(), this thread will be blocked until http call re...