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How to check if IEnumerable is null or empty?
I love string.IsNullOrEmpty method. I'd love to have something that would allow the same functionality for IEnumerable. Is there such? Maybe some collection helper class? The reason I am asking is that in if statements the code looks cluttered if the patter is (mylist != null && mylist....
What are the benefits of Java's types erasure?
...plain about type erasure, which is the only thing Java got right, while ignoring all the things it got wrong.
I get huge benefits (e.g. parametricity) and nil cost (alleged cost is a limit of imagination).
new T is a broken program. It is isomorphic to the claim "all propositions are true." I am no...
Are Exceptions in C++ really slow
I was watching Systematic Error Handling in C++—Andrei Alexandrescu he claims that Exceptions in C++ are very very slow.
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Best PHP IDE for Mac? (Preferably free!) [closed]
I need to find a good PHP IDE for Mac , but would prefer a free one.
3 Answers
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When to delete branches in Git?
...it.
So, deleting a merged branch is cheap and won't make you lose any history.
To delete a remote branch, use git push origin :mybranch, assuming your remote name is origin and the remote branch you want do delete is named mybranch.
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Meaning of @classmethod and @staticmethod for beginner? [duplicate]
... and staticmethod are quite similar, there's a slight difference in usage for both entities: classmethod must have a reference to a class object as the first parameter, whereas staticmethod can have no parameters at all.
Example
class Date(object):
def __init__(self, day=0, month=0, year=0):
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What special characters must be escaped in regular expressions?
...ters you must and which you mustn't escape indeed depends on the regex flavor you're working with.
For PCRE, and most other so-called Perl-compatible flavors, escape these outside character classes:
.^$*+?()[{\|
and these inside character classes:
^-]\
For POSIX extended regexes (ERE), escape...
What does AngularJS do better than jQuery? [closed]
...jQuery library and have just started using AngularJS. I have read a few tutorials on how to use Angular, but I am not clear on why or when to use it, or what benefits I may find in comparison to just using jQuery.
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Why do people use Heroku when AWS is present? What distinguishes Heroku from AWS? [closed]
I'm a beginner RoR programmer who's planning to deploy my app using Heroku. Word from my other advisor friends says that Heroku is really easy, good to use. The only problem is that I still have no idea what Heroku does...
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Find the min/max element of an Array in JavaScript
How can I easily obtain the min or max element of a JavaScript Array?
51 Answers
51
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