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How to join strings in Elixir?
...hat you have is an arbitrary list, then you can use Enum.join, but if it's for just two or three, explicit string concatenation should be easier to read
"StringA" <> " " <> "StringB"
However, often you don't need to have it as a single string in memory if you're going to output it thr...
Only read selected columns
Can anyone please tell me how to read only the first 6 months (7 columns) for each year of the data below, for example by using read.table() ?
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Get $_POST from multiple checkboxes
I have 1 form in with multiple checkboxes in it (each with the code):
6 Answers
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How to crop an image in OpenCV using Python
How can I crop images, like I've done before in PIL, using OpenCV.
8 Answers
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Why is  appearing in my HTML? [duplicate]
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Go-go notepad.exe! Not much else it's good for. :D
– Ryan P
Mar 13 '12 at 20:46
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How to get a cross-origin resource sharing (CORS) post request working
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this is the only solution worked for us without changeing anything on server-side...thanx miracool
– Timsta
Jul 13 '18 at 21:12
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How do I get the different parts of a Flask request's url?
... foo.herokuapp.com host and what path was requested. How do I get this information about a Flask request?
4 Answers
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Linux 进程卡住了怎么办？ - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...发现 ls 卡住了。
通过下面的命令可以看到 ls 卡在了 vfs_fstatat 调用上，它会给 FUSE 设备发送 getattr 请求，在等待回应。而 JuiceFS 客户端进程已经被我们停掉了，所以它就卡住了：
$ cat /proc/`pgrep ls`/stack
[<ffffffff813277c7>] request_w...
Creating a UICollectionView programmatically
I'm looking for a guide or tutorial that will show me how to set up a simple UICollectionView using only code.
12 Answers
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How to use the PI constant in C++
...h include <math.h> . However, there doesn't seem to be a definition for PI in this header file.
21 Answers
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