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What is the Ruby (spaceship) operator?
...,2,2]
Ruby will start comparing each element of both array from left hand side.
1 for left array is smaller than 2 of right array. Hence left array is smaller than right array. Output will be -1.
[2,3,2] <=> [2,2,2]
As above it will first compare first element which are equal then it will com...
How to copy files between two nodes using ansible
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good answer! Unfortunately I did not get it working in an Vagrant environment with multi VMs. Seems Vagrant does something special there.
– therealmarv
Mar 5 '15 at 6:56
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Cannot pass null argument when using type hinting
...her languages null has the ability to be of any type thus making null a valid argument in this case. 2: Php is using a default value for an argument to specify that null is allowable, this is obscure and it makes a mandatory parameter impossible even if the developer wants to force a null to be expl...
In Hibernate Validator 4.1+, what is the difference between @NotNull, @NotEmpty, and @NotBlank?
...g version 4.1):
The @NotNull constraint is defined as:
@Constraint(validatedBy = {NotNullValidator.class})
This class has an isValid method defined as:
public boolean isValid(Object object, ConstraintValidatorContext constraintValidatorContext) {
return object != null;
}
The @NotEmpt...
gitignore all files of extension in directory
... @haren it's not the only solution - Joey's answer is certainly valid as well. Choose whatever works best for you. I'd argue that ignore rules local to a directory should be in that directory, and that global rules should be global. (Also, this answer is ancient and I don't think ** was supp...
`staticmethod` and `abc.abstractmethod`: Will it blend?
...le new in Python 3.2, abstractclassmethod and abstractstaticmethod were rapidly deprecated in Python 3.3, as well as abstractproperty. docs.python.org/3/library/abc.html
– glarrain
May 12 '13 at 0:18
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Where is the syntax for TypeScript comments documented?
...entation. The majority of the standard JSDoc tags are preoccupied with providing type annotations for plain JavaScript, which is an irrelevant concern for a strongly-typed language such as TypeScript. TSDoc addresses these limitations while also tackling a more sophisticated set of goals.
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Setting up two different static directories in node.js Express framework
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It's not possible by one middleware injection, but you can inject static middleware multiple times:
app.configure('development', function(){
app.use(express.static(__dirname + '/public1'));
app.use(express.static(__dirname + '/public2'));
});...
Left align and right align within div in Bootstrap
...th float-* and text-* are responsive for different alignment at different widths (ie: float-sm-right)
The flexbox utils (eg:justify-content-between) can also be used for alignment:
<div class="d-flex justify-content-between">
<div>
left
</div>
<div&...
XmlWriter to Write to a String Instead of to a File
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As Richard said, StringWriter is the way forward. There's one snag, however: by default, StringWriter will advertise itself as being in UTF-16. Usually XML is in UTF-8. You can fix this by subclassing StringWriter;
public class Utf8Strin...