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Why is it Valid to Concatenate Null Strings but not to Call “null.ToString()”?
...pty : str;
// then concatenate that string array
(MSDN mentions it, too: http://msdn.microsoft.com/en-us/library/k9c94ey1.aspx)
On the other hand, ToString() is an instance method, which you cannot call on null (what type should be used for null?).
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Difference between left join and right join in SQL Server [duplicate]
I know about joins in SQL Server.
9 Answers
9
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Finding row index containing maximum value using R
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Is Java a Compiled or an Interpreted programming language ?
In the past I have used C++ as a programming language. I know that the code written in C++ goes through a compilation process until it becomes object code "machine code".
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Is there a built-in function to print all the current properties and values of an object?
...n built-in module sys:
NAME
sys
FILE
(built-in)
MODULE DOCS
http://www.python.org/doc/current/lib/module-sys.html
DESCRIPTION
This module provides access to some objects used or maintained by the
interpreter and to functions that interact strongly with the interpreter.
D...
What does the 'b' character do in front of a string literal?
Apparently, the following is the valid syntax:
8 Answers
8
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How can I generate a unique ID in Python? [duplicate]
I need to generate a unique ID based on a random value.
8 Answers
8
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What does a space mean in a CSS selector? i.e. What is the difference between .classA.classB and .cl
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How many concurrent requests does a single Flask process receive?
I'm building an app with Flask, but I don't know much about WSGI and it's HTTP base, Werkzeug. When I start serving a Flask application with gunicorn and 4 worker processes, does this mean that I can handle 4 concurrent requests?
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How to make the 'cut' command treat same sequental delimiters as one?
...ng
and much more. None of which is provided by standard cut.
See also: https://stackoverflow.com/a/24543231/1296044
Source and documentation (free software): http://arielf.github.io/cuts/
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