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How to use concerns in Rails 4

... So I found it out by myself. It is actually a pretty simple but powerful concept. It has to do with code reuse as in the example below. Basically, the idea is to extract common and / or context specific chunks of code in order to clean up the models and avoid them...
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Difference between CC, gcc and g++?

...tform-specific, is the meaning of 'CC' (and 'cc'). On Solaris, CC is normally the name of the Sun C++ compiler. On Solaris, cc is normally the name of the Sun C compiler. On Linux, if it exists, CC is probably a link to g++. On Linux, cc is a link to gcc. However, even on Solaris, it could be th...
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How do I reflect over the members of dynamic object?

... In the case of ExpandoObject, the ExpandoObject class actually implements IDictionary<string, object> for its properties, so the solution is as trivial as casting: IDictionary<string, object> propertyValues = (IDictionary<string, object>)s; Note that this will n...
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Is unsigned integer subtraction defined behavior?

... not restricted to overflow of the upper bound of the type, and applies equally to values too low to be represented. share | improve this answer | follow | ...
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How to send POST request in JSON using HTTPClient in Android?

...uthor used to make a HttpClient Request. I do not claim to be an expert at all this so if anyone has a better way to word some of the terminology feel free. public static HttpResponse makeRequest(String path, Map params) throws Exception { //instantiates httpclient to make request DefaultH...
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Finding JavaScript memory leaks with Chrome

...napshot. Repeat the same stuff. Take another heap snapshot. Filter objects allocated between Snapshots 1 and 2 in Snapshot 3's "Summary" view. For your example, I have adapted the code to show this process (you can find it here) delaying the creation of the Backbone View until the click event of t...
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Volatile Vs Atomic [duplicate]

...icInteger and AtomicReference, provide a wider variety of operations atomically, specifically including increment for AtomicInteger. share | improve this answer | follow ...
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Android: How can I get the current foreground activity (from a service)?

...atePendingResult()) that the service invokes Have the activity register a callback or listener object with the service via bindService(), and have the service call an event method on that callback/listener object Send an ordered broadcast Intent to the activity, with a low-priority BroadcastReceiver...
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Android ListView Divider

...ich rounds to 0. On some devices, that translates to 2-3 pixels, and it usually looks ugly or sloppy For dividers, 1px is the correct height if you want a 1 pixel divider and is one of the exceptions for the "everything should be dip" rule. It'll be 1 pixel on all screens. Plus, 1px usually looks b...
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How to change Status Bar text color in iOS

...lightContent } Swift 5 and SwiftUI For SwiftUI create a new swift file called HostingController.swift import Foundation import UIKit import SwiftUI class HostingController: UIHostingController<ContentView> { override var preferredStatusBarStyle: UIStatusBarStyle { return .ligh...