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Use of 'use utf8;' gives me 'Wide character in print'
...r by including use diagnostics. It will say this:
(S utf8) Perl met a wide character (>255) when it wasn't expecting
one. This warning is by default on for I/O (like print). The easiest
way to quiet this warning is simply to add the :utf8 layer to the
output, e.g. binmode STDOUT, ':ut...
How does git compute file hashes?
... the answer by @Leif Gruenwoldt and detailing what is in the reference provided by @Leif Gruenwoldt
Do It Yourself..
Step 1. Create an empty text document (name does not matter) in your repository
Step 2. Stage and Commit the document
Step 3. Identify the hash of the blob by executing gi...
Hg: How to do a rebase like git's rebase
...ave an indelible trace, and rebasing and other history editing techniques hide that.
Now go pick VonC's answer while I put my soapbox away. :)
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Configuring Log4j Loggers Programmatically
...e additivity flag).
If you need to know how logging works and how is decided where logs are written read this manual for more infos about that.
In Short:
Logger fizz = LoggerFactory.getLogger("com.fizz")
will give you a logger for the category "com.fizz".
For the above example this means tha...
Latest jQuery version on Google's CDN
...
was only being used by developers to make a local copy.
We have decided to stop
updating this file, as well as the minified copy, keeping both files
at version 1.11.1 forever.
The Google CDN team has joined us in this effort to prevent
inadvertent web breakage and no longer update...
How to read keyboard-input?
...n exception:
try:
number = int(nb)
except ValueError:
print("Invalid number")
And if you want to print the number using formatting, in Python 3 str.format() is recommended:
print("Number: {0}\n".format(number))
Instead of:
print('Number %s \n' % (nb))
But both options (str.format() ...
What does @@variable mean in Ruby?
...would not be.
[Update]
As Phrogz mentions in the comments, it's a common idiom in Ruby to track class-level data with an instance variable on the class itself. This can be a tricky subject to wrap your mind around, and there is plenty of additional reading on the subject, but think about it as mod...
Test if object implements interface
... an instance of the Class class instead, and unfortunately the right hand side operator of the instanceof keyword must be a class literal, not an instance of the Class class.
– LordOfThePigs
Jan 24 '14 at 10:55
...
Inheriting class methods from modules / mixins in Ruby
...
A common idiom is to use included hook and inject class methods from there.
module Foo
def self.included base
base.send :include, InstanceMethods
base.extend ClassMethods
end
module InstanceMethods
def bar1
'...
What do hjust and vjust do when making a plot using ggplot?
...his range, but don't expect it to behave in any specific way. This is outside spec.)
hjust controls horizontal justification and vjust controls vertical justification.
An example should make this clear:
td <- expand.grid(
hjust=c(0, 0.5, 1),
vjust=c(0, 0.5, 1),
angle=c(0, 45, 90),...