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What is a non-capturing group in regular expressions?
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Let me try to explain this with an example.
Consider the following text:
http://stackoverflow.com/
https://stackoverflow.com/questions/tagged/regex
Now, if I apply the regex below over it...
(https?|ftp)://([^/\r\n]+)(/[^\r\n]*)?
... I would get ...
Use of def, val, and var in scala
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This defines a new method called person. You can call this method only without () because it is defined as parameterless method. For empty-paren method, you can call it with or without '()'. If you simply write:
person
then you are calling this method (and if you don't assign the return value,...
var.replace is not a function
...o trim the string in Javascript but am getting the error mentioned in the title:
10 Answers
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Why do x86-64 systems have only a 48 bit virtual address space?
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Because that's all that's needed. 48 bits give you an address space of 256 terabyte. That's a lot. You're not going to see a system which needs more than that any time soon.
So CPU manufacturers took a shortcut. They use an instruction set which allows a full 64...
How to count objects in PowerShell?
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This will get you count:
get-alias | measure
You can work with the result as with object:
$m = get-alias | measure
$m.Count
And if you would like to have aliases in some variable also, you can use Tee-Object:
$m = get-alias | tee -Variable aliases | measure
$m.Count
$aliases
So...
Is there a way to only install the mysql client (Linux)?
... yum install mariadb and yum install mariadb-server. Fedora replace MySQL with MariaDB.
– Christian Berendt
Mar 2 '15 at 9:45
1
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UILabel Align Text to center
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From iOS 6 and later UITextAlignment is deprecated. use NSTextAlignment
myLabel.textAlignment = NSTextAlignmentCenter;
Swift Version from iOS 6 and later
myLabel.textAlignment = .center
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How do I break out of a loop in Scala?
...? There are several options.
(1a) Use some construct that includes a conditional that you test.
var sum = 0
(0 to 1000).iterator.takeWhile(_ => sum < 1000).foreach(i => sum+=i)
(warning--this depends on details of how the takeWhile test and the foreach are interleaved during evaluation...
What are all possible pos tags of NLTK?
How do I find a list with all possible pos tags used by the Natural Language Toolkit (nltk)?
8 Answers
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Ioc/DI - Why do I have to reference all layers/assemblies in application's entry point?
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If I wasn't using a DI container, I wouldn't have to reference EntityFramework library in my MVC3 app, only my business layer which would reference my DAL/Repo layer.
Yes, that's exactly the situation DI works so hard to avoid :)
With tightly coupled code, each library may only have a fe...