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C/C++ Struct vs Class
.... Hence, the class definer will provide a constructor and must specify its meaning. This effectively means the definer need to define an invariant.
Enforcement
Look for structs with all data private and classes with public members.
The code examples given:
struct Pair { // the members ...
Entity framework linq query Include() multiple children entities
...panyID == companyID);
The Sql generated in both instances is still by no means intuitive, but seems performant enough. I've put a small example on GitHub here
EF Core
EF Core has a new extension method, .ThenInclude(), although the syntax is slightly different:
var company = context.Companies
...
What is the purpose of mock objects?
...ishes and ensure the waiter returns the correct dish. Unfortunately, that means that this test of the waiter component may be dependent on the correct behavior of the cook component. This dependency is even worse if the cook component has any test-unfriendly characteristics, like non-deterministic...
Laravel Check If Related Model Exists
...passes unknown method calls through to its underlying query Builder.
This means you can use the exists() or count() methods directly from a relation object:
$model->relation()->exists(); // bool: true if there is at least one row
$model->relation()->count(); // int: number of related r...
Git says “Warning: Permanently added to the list of known hosts”
...r connected to before. I wouldn't recommend turning it off, since it would mean that you might miss a warning about a host key changing, which can indicate a MITM attack on your SSH session.
share
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Can someone explain the right way to use SBT?
...org.scalaj" %% "scalaj-http" % "2.4.2"
val fooTask = taskKey[Unit]("Fetch meaning of life")
fooTask := {
import scalaj.http._ // error: cannot resolve symbol
val response = Http("http://example.com").asString
...
}
However this will error saying missing import scalaj.http._. How is this pos...
What do
...;:< and <%< work similarly, but with slight variations:
A =:= B means A must be exactly B
A <:< B means A must be a subtype of B (analogous to the simple type constraint <:)
A <%< B means A must be viewable as B, possibly via implicit conversion (analogous to the simple typ...
What is “android:allowBackup”?
... @Tor When you say "copy application data off of the device", do you mean copy from data/data/com.myapp or from sdcard? The former directory is protected and cannot be read unless the device is rooted.
– IgorGanapolsky
Apr 1 '13 at 12:53
...
How do I explicitly instantiate a template function?
...rgument.
I have to instantiate that function without calling that function means explicitly I have to instantiate.
2 Answer...
HTML5 Pre-resize images before uploading
...ized and saved as-is, losing any metadata within the image for orientation meaning that images taken on a tablet device "upside down" were rendered as such, although they would have been flipped in the device's camera viewfinder. If this is a concern, this blog post has a good guide and code example...