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Copying files from Docker container to host
I'm thinking of using Docker to build my dependencies on a Continuous Integration (CI) server, so that I don't have to install all the runtimes and libraries on the agents themselves.
...
Sound effects in JavaScript / HTML5
...tiple times, create multiple instances of the Audio object. You could also set snd.currentTime=0 on the object after it finishes playing.
Since the JS constructor doesn't support fallback <source> elements, you should use
(new Audio()).canPlayType("audio/ogg; codecs=vorbis")
to test whe...
Specifying colClasses in the read.csv
...th equal to the number of imported columns. Supposing the rest of your dataset columns are 5:
colClasses=c("character",rep("numeric",5))
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Archiving project in Xcode incorrectly creates multi-application bundle
...pendent projects in XCode 4. If this happens to you, go through the Build Settings for all your dependent projects (e.g. static libraries) and make sure that the "Skip Install" option under "Deployment" is set to YES.
More detail here:
http://flakasoft.com/developer-tips/xcode-4-bug-solution-for...
What is the correct MIME type to use for an RSS feed?
...he single correct mime type is application/rss+xml,.
However, if you are setting an accept header for a client then
Accept: application/rss+xml, application/rdf+xml;q=0.8, application/atom+xml;q=0.6, application/xml;q=0.4, text/xml;q=0.4
might be a good choice, as it states that it accepts RSS, ...
(![]+[])[+[]]… Explain why this works
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Understanding exactly when a data.table is a reference to (vs a copy of) another data.table
...m(DT) and .Internal(inspect(DT)), as below. The data.table features := and set() assign by reference to whatever object they are passed. So if that object was previously copied (by a subassigning <- or an explicit copy(DT)) then it's the copy that gets modified by reference.
DT <- data.table(...
Can I change the size of UIActivityIndicator?
...
.whiteLarge does it! thx! I also set UIActivityIndicatorView(frame: CGRect(x: 0, y: 0, width: 100, height: 100)) and activityIndicator.backgroundColor = UIColor(red: 255/255, green: 255/255, blue: 255/255, alpha: 0.38). On 6+/7+ screens the default one is ju...
How do I create a Python function with optional arguments?
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Win32汇编--使用MASM - C/C++ - 清泛网 - 专注C/C++及内核技术
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C语言中的HelloWorld程序：
#include <stdio.h>
main()
{
printf(“Hello, world\n”);
}
像这样的一个程序，就说明了C语言中最基本的格式，main()中的括号和下面的花括号说明了一个函数的定义方法，printf语句说明了一个函数的调用方法...