大约有 46,000 项符合查询结果（耗时：0.0567秒） [XML]
lenses, fclabels, data-accessor - which library for structure access and mutation is better
...braries that I am aware of providing lenses.
The notion of a lens is that it provides something isomorphic to
data Lens a b = Lens (a -> b) (b -> a -> a)
providing two functions: a getter, and a setter
get (Lens g _) = g
put (Lens _ s) = s
subject to three laws:
First, that if you ...
How to have the cp command create any necessary folders for copying a file to a destination [duplica
...y need to create a single directory in an existing hierarchy, rsync can do it in one operation. I'm quite a fan of rsync as a much more versatile cp replacement, in fact:
rsync -a myfile /foo/bar/ # works if /foo exists but /foo/bar doesn't. bar is created.
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Optimize Font Awesome for only used classes
I am using Font Awesome Sass file https://github.com/FortAwesome/Font-Awesome/blob/master/sass/font-awesome.sass to make it _font-awesome.sass so I can @import in my Sass project. I am also using http://middlemanapp.com/ to convert Sass to Css . Questions:
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Can the Android drawable directory contain subdirectories?
In the Android SDK documentation, all of the examples used with the @drawable/my_image xml syntax directly address images that are stored in the res/drawable directory in my project.
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How to clear the cache in NetBeans
...follow
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edited Feb 9 '18 at 23:20
Dave Jarvis
27.6k3535 gold badges157157 silver badges281281 bronze badges
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What's the recommended approach to resetting migration history using Django South?
I've accumulated quite a few migrations using South (0.7) and Django (1.1.2) which are starting to consume quite a bit of time in my unit tests. I would like to reset the baseline and start a fresh set of migrations. I've reviewed the South documentation , done the usual Google/Stackoverflow search...
CMake unable to determine linker language with C++
I'm attempting to run a cmake hello world program on Windows 7 x64 with both Visual Studio 2010 and Cygwin, but can't seem to get either to work. My directory structure is as follows:
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Python function global variables?
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If you want to simply access a global variable you just use its name. However to change its value you need to use the global keyword.
E.g.
global someVar
someVar = 55
This would change the value of the global variable to 55. Otherwise it would just assign 55 to a local variable.
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Eclipse error: 'Failed to create the Java Virtual Machine'
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@dexter, thank you, it worked for me, by decreasing Xmx
– danisupr4
Sep 2 '14 at 2:47
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What is SOA “in plain english”? [closed]
...all about ? I hear SOA here, SOA there but I cannot understand exacly what it is and what is used for. Was it some simple concept and later evolved into something huge or what?
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