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What is the purpose of Looper and how to use it?
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Are braces necessary in one-line statements in JavaScript?
...atements could be harmful in JavaScript. I don't remember the reasoning anymore and a Google search did not help much.
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Why does C# forbid generic attribute types?
...e annotated C# 3 spec should arrive tomorrow... I'll see if that gives any more information. Anyway, it's definitely a language decision rather than a runtime one.
EDIT: Answer from Eric Lippert (paraphrased): no particular reason, except to avoid complexity in both the language and compiler for a ...
What are free monads?
...answer is obviously great. But, it is a bit technical. Here is a perhaps more accessible explanation.
Free monads are just a general way of turning functors into monads. That is, given any functor f Free f is a monad. This would not be very useful, except you get a pair of functions
liftFree ...
Compiled vs. Interpreted Languages
... to run a compilation stage: can execute code directly "on the fly"
Can be more convenient for dynamic languages
Note that modern techniques such as bytecode compilation add some extra complexity - what happens here is that the compiler targets a "virtual machine" which is not the same as the unde...
What are the differences between LDAP and Active Directory?
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LDAP is a standard, AD is Microsoft's (proprietary) implementation (and more). Wikipedia has a good article that delves into the specifics. I found this document with a very detailed evaluation of AD from an LDAP perspective.
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Test whether a glob has any matches in bash
...expanded into matches.
Exit status is:
1 for no-match,
0 for 'one or more matches'
stdout is a list of files matching the glob.
I think this is the best option in terms of conciseness and minimizing potential side effects.
UPDATE: Example usage requested.
if compgen -G "/tmp/someFiles*" &g...
Jackson enum Serializing and DeSerializer
...n implementation based on @JsonCreator and @JsonValue annotations would be more convenient.
So leveraging on the example by @Stanley the following is a complete self-contained solution (Java 6, Jackson 1.9):
public enum DeviceScheduleFormat {
Weekday,
EvenOdd,
Interval;
private s...
Check if a JavaScript string is a URL
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