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Design Patterns: Factory vs Factory method vs Abstract Factory

...uctor". Let's say you want to be able to create two kinds of Fruit: Apple and Orange. Factory Factory is "fixed", in that you have just one implementation with no subclassing. In this case, you will have a class like this: class FruitFactory { public Apple makeApple() { // Code for creati...
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Application auto build versioning

...n.xyz=abc" main.go abc In order to set main.minversion to the build date and time when building: go build -ldflags "-X main.minversion=`date -u +.%Y%m%d.%H%M%S`" service.go If you compile without initializing main.minversion in this way, it will contain the empty string. ...
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Argparse optional positional arguments?

...arguments: dir optional arguments: -h, --help show this help message and exit -v share | improve this answer | follow | ...
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Nested attributes unpermitted parameters

...bject also belongs to a Person . I want a form that can create the Bill and its children Dues all in one page. I am trying to create a form using nested attributes, similar to ones in this Railscast . ...
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user authentication libraries for node.js?

...an do password authentication for a user (using a custom backend auth DB), and associate that user with a session. 15 Answe...
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How to detect Safari, Chrome, IE, Firefox and Opera browser?

I have 5 addons/extensions for FF, Chrome, IE, Opera, and Safari. 24 Answers 24 ...
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Mean per group in a data.frame [duplicate]

I have a data.frame and I need to calculate the mean per group (i.e. per Month , below). 8 Answers ...
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SignalR - Sending a message to a specific user using (IUserIdProvider) *NEW 2.0.0*

...ngs to whom (the user), we need to create a mapping between the connection and the user. This depends on how you identify a user in your application. In SignalR 2.0, this is done by using the inbuilt IPrincipal.Identity.Name, which is the logged in user identifier as set during the ASP.NET authenti...
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Git push/clone to new server

I'm just learning Git and there is something I can't work out. After creating and using a git repository locally on my Mac, can I push a copy to another server somewhere else? I am behind a firewall so unfortunately I can't run git clone from the other machine. ...
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Performing Inserts and Updates with Dapper

...terested in using Dapper - but from what I can tell it only supports Query and Execute. I do not see that Dapper includes a way of Inserting and Updating objects. ...