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How much of a git sha is *generally* considered necessary to uniquely identify a change in a given c

...ory structure where a directory is named for a commit in a Git repository, and you want it to be short enough to make your eyes not bleed, but long enough that the chance of it colliding would be negligible, how much of the SHA substring is generally required? ...
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What is the JSF resource library for and how should it be used?

The JSF <h:outputStylesheet> , <h:outputScript> and <h:graphicImage> components have a library attribute. What is this and how should this be used? There are a lot of examples on the web which use it as follows with the common content/file type css , js and img (or ima...
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Comparing date part only without comparing time in JavaScript

... I'm still learning JavaScript, and the only way that I've found which works for me to compare two dates without the time is to use the setHours method of the Date object and set the hours, minutes, seconds and milliseconds to zero. Then compare the two dat...
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Understanding the Event Loop

I am thinking about it and this is what I came up with: 3 Answers 3 ...
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How to create an object for a Django model with a many to many field?

...my original suggestion. It works, but isn't optimal. (Note: I'm using Bars and a Foo instead of Users and a Sample, but you get the idea). bar1 = Bar.objects.get(pk=1) bar2 = Bar.objects.get(pk=2) foo = Foo() foo.save() foo.bars.add(bar1) foo.bars.add(bar2) It generates a whopping total of 7 quer...
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How exactly does the “Specific Version” property of an assembly reference work in Visual Studio?

...is that "Specific Version" is a property that takes effect at compile-time and not at runtime. What is it all about? When a project is built, the project's assembly references need to be resolved in order to find the physical assemblies that the build system should use. If the "Specific Version" c...
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Create a custom View by inflating a layout?

...ss of RelativeLayout, add all our your components in code (TextView, etc), and in your constructor you can read the attributes passed in from the XML. You can then pass that attribute to your title TextView. http://developer.android.com/guide/topics/ui/custom-components.html ...
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How to trace the path in a Breadth-First Search?

... return path # enumerate all adjacent nodes, construct a new path and push it into the queue for adjacent in graph.get(node, []): new_path = list(path) new_path.append(adjacent) queue.append(new_path) print bfs(graph, '1', '11') Another appro...
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Access lapply index names inside FUN

... n=names(x)) Here I use lapply over the indices of x, but also pass in x and the names of x. As you can see, the order of the function arguments can be anything - lapply will pass in the "element" (here the index) to the first argument not specified among the extra ones. In this case, I specify y ...
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Why does Unicorn need to be deployed together with Nginx?

I would like to know the difference between Nginx and Unicorn. As far as I understand, Nginx is a web server while Unicorn is a Ruby HTTP server. ...