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Getting an element from a Set
...act, the whole object 'revolves' around said key. Furthermore, the caller knows said String, but not the object itself; that's exactly why it wants to retrieve it by key. I'm using a Map now of course, but it remains odd behaviour.
– pauluss86
Jan 16 '14 at 19:...
Is it good practice to make the constructor throw an exception? [duplicate]
...or example I have a class Person and I have age as its only attribute. Now
I provide the class as
8 Answers
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Can I set null as the default value for a @Value in Spring?
...>
<property name="nullValue" value="@null" />
</bean>
Now you can use the string @null to represent the null value
@Value("${stuff.value:@null}")
private String value;
Please note: The context name space doesn't support the null value at the moment. You can't use
<context...
What does yield mean in PHP?
...question's example that's $i.
What's the difference to normal functions?
Now you might wonder why we are not simply using PHP's native range function to achieve that output. And right you are. The output would be the same. The difference is how we got there.
When we use range PHP, will execute i...
Most efficient way of making an if-elif-elif-else statement when the else is done the most?
...dictionary :
options = {'this': doThis,'that' :doThat, 'there':doThere}
Now use just:
options.get(something, doThisMostOfTheTime)()
If something is not found in the options dict then dict.get will return the default value doThisMostOfTheTime
Some timing comparisons:
Script:
from random imp...
How do I create a new GitHub repo from a branch in an existing repo?
I have master and new-project branches. And now I'd like to create a brand new repo with its master based on the new-project branch.
...
AngularJS - Access to child scope
...ope) add:
var parentScope = $scope.$parent;
parentScope.child = $scope;
Now the parent has access to the child's scope.
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How do I write a custom init for a UIView subclass in Swift?
... called, and instead the init?(coder:) version will be called. Since Swift now requires an implementation of the required init?(coder:), I have updated the example below and changed the let variable declarations to var and optional. In this case, you would initialize them in awakeFromNib() or at som...
Visual Studio: Relative Assembly References Paths
... to
<HintPath>..\..\myReferences\myDLL.dll</HintPath>
This now references C:\myReferences\myDLL.dll.
Hope this helps.
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What is the difference between a symbolic link and a hard link?
...o the file myfile.txt":
$ ln -s myfile.txt my-soft-link
Look what will now happen if myfile.txt is deleted (or moved): my-hard-link still points to the same contents, and is thus unaffected, whereas my-soft-link now points to nothing. Other answers discuss the pros/cons of each.
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