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Merge/flatten an array of arrays
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Usage:
flatten([[1, 2, 3], [4, 5]]); // [1, 2, 3, 4, 5]
flatten([[[1, [1.1]], 2, 3], [4, 5]]); // [1, 1.1, 2, 3, 4, 5]
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How to find out which package version is loaded in R?
...plyr_1.7.1
loaded via a namespace (and not attached):
[1] colorspace_1.1-1 dichromat_1.2-4 digest_0.5.2 MASS_7.3-18 memoise_0.1 munsell_0.3
[7] proto_0.3-9.2 RColorBrewer_1.0-5 scales_0.2.0 stringr_0.6
>
However, as per comments and the ...
Callback functions in C++
...ave.
Let's have a simple function foo:
int foo (int x) { return 2+x; }
1.1 Writing a function pointer / type notation
A function pointer type has the notation
return_type (*)(parameter_type_1, parameter_type_2, parameter_type_3)
// i.e. a pointer to foo has the type:
int (*)(int)
where a na...
Would you, at present date, use JBoss or Glassfish (or another) as Java EE server for a new project?
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Checkout GlassFish 3.1! Built on top of the modular, Java EE 6 based GlassFish v3 kernel, version 3.1 delivers clustering, centralized administration and high availability.
Refer to http://blogs.oracle.com/nazrul/entry/glassfish_3_1 for more ...
Android emulator and virtualbox cannot run at same time
...u have the latest version of Intel Emulator Accelerator HAXM installed (v6.1.1) .
Go to the extras directory of the Android SDK location displayed in the preferences. On MacOS you can do this:
open ~/Library/Android/sdk/extras
Install the HAXM packing by opening IntelHAXM_6.1.1.dmg, then opening I...
Twitter bootstrap float div right
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Inaimathi
13.1k77 gold badges4141 silver badges8686 bronze badges
answered Feb 11 '13 at 9:40
Billy MoatBilly Mo...
How can I get Docker Linux container information from within the container itself?
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Aaaaand Docker 1.12: cat /proc/1/cgroup | grep 'docker/' | tail -1 | sed 's/^.*\///' | cut -c 1-12
– smets.kevin
Jul 27 '16 at 21:05
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RESTful API methods; HEAD & OPTIONS
...ties of the server. For example, this can be used to test a proxy for HTTP/1.1 compliance (or lack thereof).
If the Request-URI is not an asterisk, the OPTIONS request applies only to the options that are available when communicating with that resource.
A 200 response SHOULD include any header field...
__attribute__ - C/C++ - 清泛网 - 专注C/C++及内核技术
...ributes ；GCC 3.2 Variable Attributes ；GCC 3.2
Type Attributes ；GCC 3.1 Function Attributes ；GCC 3.1 Variable Attributes
Reference：
1．有关__attribute__的相对简单的介绍：http://www.unixwiz.net/techtips/gnu-c-attributes.html
2．__attribute__详细介绍：http://gcc.gnu...
What should a Multipart HTTP request with multiple files look like? [duplicate]
... non-printable-ascii character into a dot (".").
POST /cgi-bin/qtest HTTP/1.1
Host: aram
User-Agent: Mozilla/5.0 Gecko/2009042316 Firefox/3.0.10
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-us,en;q=0.5
Accept-Encoding: gzip,deflate
Accept-Charset: ISO-...