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Compare two data.frames to find the rows in data.frame 1 that are not present in data.frame 2
...). Leave a1 the same. Now try the comparison. It's not clear to me even in reading the options what the proper way is to list only common elements.
– Hendy
Aug 8 '13 at 2:59
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C# XML Documentation Website Link
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You can read about Sandcastle here btw. "Sandcastle, created by Microsoft, is a free tool used for creating MSDN-style documentation from .NET assemblies and their associated XML comment files. It is command-line based and has no GUI...
Ignore .pyc files in git repository
...i try to use the sentence of a prior post and don't work recursively, then read some help and get this line:
find . -name "*.pyc" -exec git rm -f "{}" \;
p.d. is necessary to add *.pyc in .gitignore file to maintain git clean
echo "*.pyc" >> .gitignore
Enjoy.
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Check if a string contains one of 10 characters
...OfAny(new char[] { '*', '&', '#' }) != -1
Or in a possibly easier to read form:
var match = str.IndexOfAny("*&#".ToCharArray()) != -1
Depending on the context and performance required, you may or may not want to cache the char array.
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Declare a constant array
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thisIsPrivate is available only in the package it is defined. If you need read access from outside, you can write a simple getter function (see Getters in golang).
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Deserialize JSON into C# dynamic object?
...owever if you cannot assume the client environment includes this DLL, then read on.
An alternative deserialisation approach is suggested here. I modified the code slightly to fix a bug and suit my coding style. All you need is this code and a reference to System.Web.Extensions from your project...
How to send JSON instead of a query string with $.ajax?
... in php you can only see application/x-www-form-urlencoded, if you want to read json data you must do file_get_contents("php://input") and perhaps then a json_decode()
– santiago arizti
Nov 23 '18 at 15:33
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Difference between '..' (double-dot) and '…' (triple-dot) in range generation?
... #=> false
†The docs used to not include this, instead requiring reading the Pickaxe’s section on Ranges. Thanks to @MarkAmery (see below) for noting this update.
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Updating and committing only a file's permissions using git version control
...xecutable or not. It does not track other file permission like writable or readable. Read stackoverflow.com/a/11231682/2311074 for more.
– Adam
Jul 11 '17 at 8:22
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C# Lambda expressions: Why should I use them?
I have quickly read over the Microsoft Lambda Expression documentation.
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