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Ruby Metaprogramming: dynamic instance variable names

... @Andrew: Struct.new creates a new class based on the hash keys, and then the second new makes the first object of the just-created class, initializing it to the values of the Hash. See ruby-doc.org/core-1.8.7/classes/Struct.html – DigitalRoss...
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npm failed to install time with make not found error

... I had the same problem using Docker, both on CENTOS 7 and RHEL 7 base images... do the following: RUN yum install -y make gcc* Worked perfectly for me! share | improve this answer ...
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Rails 4: before_filter vs. before_action

... As we can see in ActionController::Base, before_action is just a new syntax for before_filter. However all before_filters syntax are deprecated in Rails 5.0 and will be removed in Rails 5.1 ...
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Is the size of C “int” 2 bytes or 4 bytes?

...ote that the standard encourages us to consider choosing our integer types based on range rather than size, but for now let's ignore the standard practice, and let our curiosity explore sizeof, bytes and CHAR_BIT, and integer representation... let's burrow down the rabbit hole and see it for ourselv...
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Is it possible to update a localized storyboard's strings?

I localized a part of my application with creating a base.lproj storyboard and 3 string files for it. It was a month ago and after that I added new view controller to app, but this controller's buttons and labels not appear in string files ...
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How can I make an svg scale with its parent container?

...ontaining block), but instead 100% of the viewport that has been specified based on the intrinsic aspect ratio (which is computed from the viewBox when that is given). I haven't yet found a solution for that problem that works in Chrome/Safari. – Brian Campbell ...
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Best way to simulate “group by” from bash?

... which is worse than two passes (which is what you get with a trivial hash based implementation). I should have said 'superlinear' instead of quadratic. – Vinko Vrsalovic Dec 19 '08 at 13:23 ...
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Why is using onClick() in HTML a bad practice?

... as a huge issue when working on a project or debugging someone elses code base. In general, while I agree with you, I don't see discoverability to be a good reason to write in-line script, sacraficing benefits such as code testability and the ability to separate out your function/behaviour code awa...
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Should one use < or

... The first is more idiomatic. In particular, it indicates (in a 0-based sense) the number of iterations. When using something 1-based (e.g. JDBC, IIRC) I might be tempted to use &lt;=. So: for (int i=0; i &lt; count; i++) // For 0-based APIs for (int i=1; i &lt;= count; i++) // For 1-base...
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Differences between Microsoft .NET 4.0 full Framework and Client Profile

...ng Server apps. Such as: o ASP.Net apps o Server-side ASMX based web services If you use legacy client scenarios. Such as: o Use System.Data.OracleClient.dll which is deprecated in NET4 and not included in the Client Profile. o Use legacy Windows Workflow Foundati...