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Regex Named Groups in Java
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281
(Update: August 2011)
As geofflane mentions in his answer, Java 7 now support named groups.
t...
Xcode can only refactor C and Objective-C code. How to rename swift class name in Xcode 6?
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25
You can change name of a class in File Inspector at the right side of Xcode6.
open your class...
Is there a difference between “==” and “is”?
... the objects referred to by the variables are equal.
>>> a = [1, 2, 3]
>>> b = a
>>> b is a
True
>>> b == a
True
# Make a new copy of list `a` via the slice operator,
# and assign it to variable `b`
>>> b = a[:]
>>> b is a
False
>>>...
Rails auto-assigning id that already exists
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edited Jun 17 '12 at 5:07
answered Jun 17 '12 at 4:43
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Concurrent.futures vs Multiprocessing in Python 3
Python 3.2 introduced Concurrent Futures , which appear to be some advanced combination of the older threading and multiprocessing modules.
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Assigning variables with dynamic names in Java
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Stephen CStephen C
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Double decimal formatting in Java
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222
One of the way would be using NumberFormat.
NumberFormat formatter = new DecimalFormat("#0.00...
Postgres: Distinct but only for one column
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231
To do a distinct on only one (or n) column(s):
select distinct on (name)
name, col1, col2
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Define global variable in a JavaScript function
... properties of the window object. (In the latest specification, ECMAScript 2015, the new let, const, and class statements at global scope create globals that aren't properties of the global object; a new concept in ES2015.)
(There's also the horror of implicit globals, but don't do it on purpose an...
Where is Developer Command Prompt for VS2013?
...need to run web.exe file from my developer command prompt in Visual Studio 2013. By default, the command prompt is not installed in Visual Studio 2013.
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