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Regex - Should hyphens be escaped? [duplicate]
...common to find a hyphen placed first or last within a character class, but by no means will you be lynched by hordes of furious neckbeards for choosing to escape it instead.
(Actually... my experience has been that a lot of regex is employed by folks who don't fully grok the syntax. In these cases,...
How do I properly clean up Excel interop objects?
... created a wrapper for the Worksheets COM object which didn't get released by my code (because I wasn't aware of it) and was the cause why Excel was not unloaded.
I found the solution to my problem on this page, which also has a nice rule for the usage of COM objects in C#:
Never use two dots w...
Differences between Intent and PendingIntent
...to pick how to send your email data.
EXPLICIT INTENTS
// Explicit Intent by specifying its class name
Intent i = new Intent(this, TargetActivity.class);
i.putExtra("Key1", "ABC");
i.putExtra("Key2", "123");
// Starts TargetActivity
startActivity(i);
IMPLICIT INTENTS
// Implicit Int...
How to get a value of an element by name instead of ID
...ue of an element via the attribute name instead of the ID . eg if I use by id it would be $('#id').val();
9 Answers
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Why use deflate instead of gzip for text files served by Apache?
...dvantages do either method offer for html, css and javascript files served by a LAMP server. Are there better alternatives?
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What is the difference between user variables and system variables?
...riables are only for your account/profile.
If you deleted the system ones by accident, bring up the Registry Editor, then go to HKLM\ControlSet002\Control\Session Manager\Environment (assuming your current control set is not ControlSet002). Then find the Path value and copy the data into the Path v...
Querying data by joining two tables in two database on different servers
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If a linked server is not allowed by your dba, you can use OPENROWSET. Books Online will provide the syntax you need.
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Difference between “managed” and “unmanaged”
...a what they are and what are their differences. What are their difference, by definition? What are the consequences of using either of them? Does this distinction exist in .NET/Windows only?
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When and why are database joins expensive?
...volves bulk disk reads which are the most expensive aspect of the exercise by an order of magnitude. Performing a join, by contrast, logically requires retrieval of only the keys. In practice, not even the key values are fetched: the key hash values are used for join comparisons, mitigating the cost...
log4j vs logback [closed]
...tation and examples on loggers are written in terms of the SLF4J API.
So by using logback, you'd be actually using SLF4J and if for any reason you wanted to switch back to log4j, you could do so within minutes by simply dropping slf4j-log4j12.jar onto your class path.
When migrating from logback ...