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What is a “context bound” in Scala?
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Did you find this article? It covers the new context bound feature, within the context of array improvements.
Generally, a type parameter with a context bound is of the form [T: Bound]; it is expanded to plain type paramet...
What are the differences between 'call-template' and 'apply-templates' in XSL?
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This way you give up a little control to the XSLT processor - not you decide where the program flow goes, but the processor does by finding the most appropriate match for the node it's currently processing.
If multiple templates can match a node, the one with the more specific match expression w...
What's Pros and Cons: putting javascript in head and putting just before the body close
... answered Mar 16 '10 at 0:39
David JohnstoneDavid Johnstone
22.4k1414 gold badges6464 silver badges7171 bronze badges
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Proper practice for subclassing UIView?
...er, it's fairly simple to use the loadView and related viewWill , viewDid methods, but when subclassing a UIView, the closest methosds I have are `awakeFromNib , drawRect , and layoutSubviews . (I'm thinking in terms of setup and teardown callbacks.) In my case, I'm setting up my frame and i...
Default value of function parameter
...ied.
For example, you can declare a function with no default arguments
void foo(int a, int b);
In order to call that function after such declaration you'll have to specify both arguments explicitly.
Later (further down) in the same translation unit, you can re-declare it again, but this time w...
Directive isolate scope with ng-repeat scope in AngularJS
...t;
{{$index}}: {{name.first}} {{name.last}}
</li>
Here is a JSFiddle demonstrating that it won't work. You get the exact same results as in your directive.
Why doesn't it work? Because scopes in AngularJS use prototypical inheritance. The value selected on your parent scope is a primiti...
What is the default location for MSBuild logs?
... Which is all well and good until you're using diagnostic output and VS decides to throw an 'out of memory' exception when you try to copy to the clipboard. Really is a fundamentally stupid decision not to support sending the build log to a file in the IDE. But hey ho, such is life.
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Is there a way to pass optional parameters to a function?
...d never use. If the parameter has this default value, you know the caller did not specify the parameter. If the parameter has a non-default value, you know it came from the caller.
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Blocks on Swift (animateWithDuration:animations:completion:)
...lf.blurBg.alpha = 1
}, completion: {
(value: Bool) in
self.blurBg.hidden = true
})
The important part here is the (value: Bool) in. That tells the compiler that this closure takes a Bool labeled 'value' and returns void.
For reference, if you wanted to write a closure that returned a bool...
In Django, how does one filter a QuerySet with dynamic field lookups?
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Person.objects.filter(**kwargs)
This is a very common and useful Python idiom.
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