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Should a function have only one return statement?
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I often have several statements at the start of a method to return for "easy" situations. For example, this:
public void DoStuff(Foo foo)
{
if (foo != null)
{
...
}
}
... can be made more readable (IMHO) like this:
public void DoStuff(Foo f...
Which method performs better: .Any() vs .Count() > 0?
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If you are starting with something that has a .Length or .Count (such as ICollection<T>, IList<T>, List<T>, etc) - then this will be the fastest option, since it doesn't need to go through the GetEnumerator()/MoveNext(...
Remove duplicate rows in MySQL
...mployee, with the following columns:
employee (id, first_name, last_name, start_date, ssn)
In order to delete the rows with a duplicate ssn column, and keeping only the first entry found, the following process can be followed:
-- create a new tmp_eployee table
CREATE TABLE tmp_employee LIKE empl...
How do I enable TODO/FIXME/XXX task tags in Eclipse?
...oupi - thanks for helping clear up the confusion! I finally understood and started converting a Markers: Java Task - TODO into a Mylin Task (which is open by default in the Java Perspective) and then I caught myself, remembering your advice above--slapped my head-- and replaced the Mylin/Task List v...
Node.js on multi-core machines
...ame port, and also auto-respawning if you want to make sure a process is restarted if/when it dies.
UPDATE - 10/11/11: Consensus in the node community seems to be that Cluster is now the preferred module for managing multiple node instances per machine. Forever is also worth a look.
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Java: when to use static methods
...ifficult to reason about, the bad thing is that sooner or later everything starts 'looking like' an utility (yeah I'm referring to that "util" package that is bloated, untouchable and poorly tested), and your test cases will need more work (to mock static utils is HARD). Prefer objects first.
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How to modify a specified commit?
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... earlier commits ...
$ git reset 2c52489
... and you're back where you started
* Watch out for options like --hard and --force though — they can discard data.
* Also, don't rewrite history on any branches you're collaborating on.
On many systems, git rebase -i will open up Vim by default. ...
getResourceAsStream() vs FileInputStream
...e. the directory from which the JVM (in your case: the webserver's one) is started. This may for example be C:\Tomcat\bin or something entirely different, but thus not C:\Tomcat\webapps\contextname or whatever you'd expect it to be. In a normal Eclipse project, that would be C:\Eclipse\workspace\pro...
What's the shebang/hashbang (#!) in Facebook and new Twitter URLs for?
...t the hashbang system was slow in the long run and that they have actually started reversing the decision and returning to old-school links.
Article about this is here.
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When would you use .git/info/exclude instead of .gitignore to exclude files?
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Just to offer our (real world) experience: we started using .git/info/exclude when we had to customize some config files on each development environment but still wanted the source to be maintained in the repo and available to other developers.
This way, the local file...