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Why isn't String.Empty a constant?
In .Net why is String.Empty read only instead of a constant? I'm just wondering if anyone knows what the reasoning was behind that decision.
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How to create a file in Ruby
... {|f| f.write("write your stuff here") }
where your options are:
r - Read only. The file must exist.
w - Create an empty file for writing.
a - Append to a file.The file is created if it does not exist.
r+ - Open a file for update both reading and writing. The file must exist.
w+ - Crea...
CAP theorem - Availability and Partition Tolerance
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Consistency means that data is the same across the cluster, so you can read or write from/to any node and get the same data.
Availability means the ability to access the cluster even if a node in the cluster goes down.
Partition tolerance means that the cluster continues to function even if th...
Avoiding recursion when reading/writing a port synchronously?
...1 can set some global lock state i.e. with a variable (be sure that it's thread safe). locked = true. Then Communication2 can wait until it's unlocked.
loop do
sleep 10ms
break if not locked
end
locked = true
handle_communication()
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Combine Date and Time columns using python pandas
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It's worth mentioning that you may have been able to read this in directly e.g. if you were using read_csv using parse_dates=[['Date', 'Time']].
Assuming these are just strings you could simply add them together (with a space), allowing you to apply to_datetime:
In [11]: df['...
How to read the database table name of a Model instance?
... });
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mmap() vs. reading blocks
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I was trying to find the final word on mmap / read performance on Linux and I came across a nice post (link) on the Linux kernel mailing list. It's from 2000, so there have been many improvements to IO and virtual memory in the kernel since then, but it nicely explains ...
Easy way to write contents of a Java InputStream to an OutputStream
...ut) throws IOException
As the documentation states, transferTo will:
Reads all bytes from this input stream and writes the bytes to the
given output stream in the order that they are read. On return, this
input stream will be at end of stream. This method does not close
either stream.
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Read and parse a Json File in C#
...est part of two days "faffing" about with code samples and etc., trying to read a very large JSON file into an array in c# so I can later split it up into a 2d array for processing.
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How to generate a random string of a fixed length in Go?
...ficantly.
Having said that, even if you don't need the fastest solution, reading through this answer might be adventurous and educational.
I. Improvements
1. Genesis (Runes)
As a reminder, the original, general solution we're improving is this:
func init() {
rand.Seed(time.Now().UnixNano()...