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What does @@variable mean in Ruby?
... is in the comments at the end of the puts lines:
class Test
@@shared = 1
def value
@@shared
end
def value=(value)
@@shared = value
end
end
class AnotherTest < Test; end
t = Test.new
puts "t.value is #{t.value}" # 1
t.value = 2
puts "t.value is #{t.value}" # 2
x = Test.new...
How do I squash two non-consecutive commits?
...ick ccccccc Commit C
pick ddddddd Commit D
# Rebase aaaaaaa..ddddddd onto 1234567 (4 command(s))
#
# Commands:
# p, pick = use commit
# r, reword = use commit, but edit the commit message
# e, edit = use commit, but stop for amending
# s, squash = use commit, but meld into previous commit
# f, fixu...
python requests file upload
...
217
If upload_file is meant to be the file, use:
files = {'upload_file': open('file.txt','rb')}
va...
Is it possible to use 'else' in a list comprehension? [duplicate]
...used in comprehension statements:
>>> [a if a else 2 for a in [0,1,0,3]]
[2, 1, 2, 3]
So for your example,
table = ''.join(chr(index) if index in ords_to_keep else replace_with
for index in xrange(15))
...
Why do x86-64 instructions on 32-bit registers zero the upper part of the full 64-bit register?
...
101
I'm not AMD or speaking for them, but I would have done it the same way. Because zeroing the h...
Disable a Maven plugin defined in a parent POM
... |
edited Feb 28 at 17:56
answered Jan 8 '13 at 7:54
...
How to gracefully handle the SIGKILL signal in Java
...
138
It is impossible for any program, in any language, to handle a SIGKILL. This is so it is alway...
Why return NotImplemented instead of raising NotImplementedError
...
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edited Jul 31 '16 at 7:55
Fermi paradox
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