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Using helpers in model: how do I include helper dependencies?
...cerns with active record models. That's a terrible practice. A much better approach is to put a standalone input data sanitizer object in front of AR and retrieve "clean" attributes from it.
– solnic
Jul 29 '14 at 10:52
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@import vs #import - iOS 7
.... If you opt-in to using modules, all #import and #include directives are mapped to use @import automatically. That means that you don't have to change your source code (or the source code of libraries that you download from elsewhere). Supposedly using modules improves the build performance too, es...
targetContentOffsetForProposedContentOffset:withScrollingVelocity without subclassing UICollectionVi
I've got a very simple collectionView in my app (just a single row of square thumbnail images).
18 Answers
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Can a program depend on a library during compilation but not runtime?
...t compile-time is very common. For instance, if you're writing a Java EE 6 application, you compile against the Java EE 6 API, but at runtime, any Java EE container can be used; it's this container that provides the implementation.
Compile-time dependencies can be avoided by using reflection. For i...
Provide an image for WhatsApp link sharing
How can we include an image in our website to display in WhatsApp when we share a link like this?
19 Answers
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Calculate distance between two latitude-longitude points? (Haversine formula)
...very much for all this. I used the following code in my Objective-C iPhone app:
const double PIx = 3.141592653589793;
const double RADIO = 6371; // Mean radius of Earth in Km
double convertToRadians(double val) {
return val * PIx / 180;
}
-(double)kilometresBetweenPlace1:(CLLocationCoordina...
How do you log server errors on django sites
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the Exception passed into process_exception doesn't appear to have the stack trace, is there a way to get that?
– Nick BL
Sep 4 '19 at 17:38
add a comme...
Is it possible to make an ASP.NET MVC route based on a subdomain?
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Does this approach requires hard-coding a list of possible sub-domains?
– Maxim V. Pavlov
Mar 31 '12 at 8:15
2
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What is the difference between JVM, JDK, JRE & OpenJDK?
...vides the libraries, the Java Virtual Machine, and other components to run applets and applications written in the Java programming language. In addition, two key deployment technologies are part of the JRE: Java Plug-in, which enables applets to run in popular browsers; and Java Web Start, which de...
Listening for variable changes in JavaScript
...he proxy around like if it was your object and make the other parts of the app interact with your proxy. Changes on the proxy will be reflected on the actual object.
– Zoltán Matók
Sep 27 '19 at 9:26
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