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What is a callback?
...n.
Throughout this process, the page is
live in the browser.
Source: http://msdn.microsoft.com/en-us/library/ms178208.aspx
If you are referring to callbacks in code:
Callbacks are often delegates to methods that are called when the specific operation has completed or performs a sub-action. Y...
Unicode, UTF, ASCII, ANSI format differences
...ldn't - but you need to distinguish between "content that is sent back via HTTP from the web server" and "content that is sent via email". It's not the web page content that sends the email - it's the app behind it, presumably. The web content would be best in UTF-8; the mail content could be in UTF...
What are the differences in die() and exit() in PHP?
...ection. exit() doesn't close the connection.
die():
<?php
header('HTTP/1.1 304 Not Modified');
die();
?>
exit():
<?php
header('HTTP/1.1 304 Not Modified');
exit();
?>
Results:
exit():
HTTP/1.1 304 Not Modified
Connection: Keep-Alive
Keep-Alive: timeout=5, max...
Java `final` method: what does it promise?
...derived class, therefore it will do what the base class author intended.
http://download.oracle.com/javase/tutorial/java/IandI/final.html
Worth noting is the part where it suggests that methods called from constructors should be final.
...
Is Redis just a cache?
I have been reading some Redis docs and trying the tutorial at http://try.redis-db.com/ . So far, I can't see any difference between Redis and caching technologies like Velocity or the Enterprise Library Caching Framework
...
Remove all child elements of a DOM node in JavaScript
...ers or break jquery references, it's also recommended as a solution here:
https://developer.mozilla.org/en-US/docs/Web/API/Element.innerHTML.
The fastest DOM manipulation method (still slower than the previous two) is the Range removal, but ranges aren't supported until IE9.
var range = document....
Make Visual Studio understand CamelCase when hitting Ctrl and cursor keys
...Options -> Editor -> Editor Behaviour is turned off.
Details here: http://davidrcook.wordpress.com/2009/11/05/working-with-camel-case-in-visual-studio/
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How to get error information when HttpWebRequest.GetResponse() fails
I am initiating an HttpWebRequest and then retrieving it's response. Occasionally, I get a 500 (or at least 5##) error, but no description. I have control over both endpoints and would like the receiving end to get a little bit more information. For example, I would like to pass the exception mes...
How to version control a record in a database
...ite queries against the FOO table. Happy days.
Then, I would create a FOO_HISTORY table. This has all the columns of the FOO table. The primary key is the same as FOO plus a RevisionNumber column. There is a foreign key from FOO_HISTORY to FOO. You might also add columns related to the revisio...
What is the advantage of using async with MVC5?
...s like your javascript and images. Alternatively you could use NgineX / Lighttpd / Apache for files, or you could use a third party service such as Akamai (king for CDN but most expensive)
– Chris Marisic
Oct 22 '16 at 21:00
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