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Warning as error - How to rid these
...ries, depending on the type of project (class library vs. web application, for example).
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Java: Why is the Date constructor deprecated, and what do I use instead?
...nstructor is deprecated, and Calendar should be used instead.
The JavaDoc for Date describes which constructors are deprecated and how to replace them using a Calendar.
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Piping both stdout and stderr in bash?
... file.)
To combine stdout and stderr you would redirect the latter to the former using 2>&1. This redirects stderr (file descriptor 2) to stdout (file descriptor 1), e.g.:
$ { echo "stdout"; echo "stderr" 1>&2; } | grep -v std
stderr
$
stdout goes to stdout, stderr goes to stderr. ...
Checking whether a variable is an integer or not [duplicate]
...ght answer in Python, since it blocks all the flexibility of polymorphism. For instance, if you subclass int, your new class should register as an int, which type will not do:
class Spam(int): pass
x = Spam(0)
type(x) == int # False
isinstance(x, int) # True
This adheres to Python's strong polymorp...
What is the “-d” in “npm -d install”?
I've seen some posts that refer to running npm with a -d argument. For example, this issue refers to doing npm -d install coffee-script . There are a few other pages that also refer to this syntax, including the install instructions for at least one npm package.
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How to change the opacity (alpha, transparency) of an element in a canvas element after it has been
...
I am also looking for an answer to this question, (to clarify, I want to be able to draw an image with user defined opacity such as how you can draw shapes with opacity) if you draw with primitive shapes you can set fill and stroke color with ...
Xcode 4 - “Archive” is greyed out?
...sed to select between simulator/device. It won’t let you archive a build for the simulator.
Or you may find that if the iOS device is already selected the archive box isn’t selected when you choose “Edit Schemes” => “Build”.
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File.separator vs FileSystem.getSeparator() vs System.getProperty(“file.separator”)?
There seems to be three identical ways to get the platform-dependent "file separator" platform-independently:
2 Answers
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C# generic “where constraint” with “any generic type” definition?
...Car : IGenericCar<TOther> { ... }
Option2: Define a base interface for IGenericCar<T> which is not generic and constrain against that interface
interface IGenericCar { ... }
interface IGenericCar<T> : IGenericCar { ... }
interface IGarrage<TCar> where TCar : IGenericCar { ...
How do I sort an array of hashes by a value in the hash?
... sort in-place. (Do you have a Python background, perhaps?)
Ruby has sort! for in-place sorting, but there's no in-place variant for sort_by in Ruby 1.8. In practice, you can do:
sorted = sort_me.sort_by { |k| k["value"] }
puts sorted
As of Ruby 1.9+, .sort_by! is available for in-place sorting:
so...