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Using parameters in batch files at Windows command line
...ou can use
ECHO %~dp0
You can view the full range of these capabilities by typing CALL /? in the command prompt.
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Deleting an object in java?
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You should remove the references to it by assigning null or leaving the block where it was declared. After that, it will be automatically deleted by the garbage collector (not immediately, but eventually).
Example 1:
Object a = new Object();
a = null; // after t...
One DbContext per web request… why?
...uch as
LINQ to SQL's DataContext, and NHibernate's ISession.
Let start by echoing Ian: Having a single DbContext for the whole application is a Bad Idea. The only situation where this makes sense is when you have a single-threaded application and a database that is solely used by that single app...
Knight's Shortest Path on Chessboard
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What do you mean by unavailable move? A knight can reach any square right!?
– everlasto
Jan 21 '17 at 16:42
add a com...
Which parts of Real World Haskell are now obsolete or considered bad practice?
...read along while reading RWH is "What I Wish I Knew When Learning Haskell" by Stephen Diehl. It provides additional insight, but be aware, some sections aren't really newcomer friendly.
General remarks
Read the comments. They usually contain information whether the given paragraph/section is stil...
What does Docker add to lxc-tools (the userspace LXC tools)?
If you take a look at Docker's features, most of them are already provided by LXC.
5 Answers
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Wolfram's Rule 34 in XKCD [closed]
...CA:
http://lucasoman.com/files/projects/caeditor/caed.php
As you can see by playing with it, you can randomly toggle any block, which alters every
block below it according to the rules. It's kind of a neat way to see the chain reaction
caused by aberrations in the process.
Hope this helps.
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Difference between a “coroutine” and a “thread”?
... to switch coroutines; in other words, tasks are cooperatively multitasked by pausing and resuming functions at set points, typically (but not necessarily) within a single thread.
Long answer: In contrast to threads, which are pre-emptively scheduled by the operating system, coroutine switches are ...
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 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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