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Using .gitignore to ignore everything but specific directories

... Here's how I did it - you essentially have to walk up the paths, you can't wildcard more than one level in any direction: # Ignore everything: * # Except for the themes directories: !wordpress/ !wordpress/*/ !wordpress/*/wp-content/ !wordpress/*/wp-conten...
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Can I make fast forwarding be off by default in git?

I can't really ever think of a time when I would use git merge rather than git rebase and not want to have a commit show up. Is there any way to configure git to have fast forwarding off by default? The fact that there's an --ff option would seem to imply that there's a way, but I can't se...
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Mean per group in a data.frame [duplicate]

... the many ways to specify the variables to act on. Here, vars(-Month) says all variables except Month. share | improve this answer | follow | ...
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How do I get the width and height of a HTML5 canvas?

...n the canvas element, the default 300x150 size will be returned. To dynamically get the correct width and height use the following code: const canvasW = canvas.getBoundingClientRect().width; const canvasH = canvas.getBoundingClientRect().height; Or using the shorter object destructuring syntax: ...
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Using MemoryStore in production

...evelopment mode, because if your app restarts (process dies) you will lose all the session data (that resided in the memory of that process). If you don't want to use a database, use encrypted cookie storage instead. http://www.senchalabs.org/connect/cookieSession.html ...
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How unique is UUID?

...om numbers. However, it seems to me that given enough time, it would eventually repeat it self, just by pure chance. Is there a better system or a pattern of some type to alleviate this issue? ...
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What is the “FS”/“GS” register intended for?

...dows and Linux. The original intention behind the segment registers was to allow a program to access many different (large) segments of memory that were intended to be independent and part of a persistent virtual store. The idea was taken from the 1966 Multics operating system, that treated files a...
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How to remove focus without setting focus to another control?

I like my UIs to be intuitive; each screen should naturally and unobtrusively guide the user on to the next step in the app. Barring that, I strive to make things as confusing and confounding as possible. ...
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How to count total number of watches on a page?

...his answer was missing the $isolateScope searching and the watchers potentially being duplicated in his/her answer/comment. Thanks to Ben2307 for pointing out that the 'body' may need to be changed. Original I did the same thing except I checked the data attribute of the HTML element rather than...
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Constructor of an abstract class in C#

...stract class. That way you can have classes that inherit from that class call the base constructor. public abstract class A{ private string data; protected A(string myString){ data = myString; } } public class B : A { B(string myString) : base(myString){} } ...