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What's the difference between Ruby's dup and clone methods?
...ot.
class Foo
attr_accessor :bar
end
o = Foo.new
o.freeze
o.dup.bar = 10 # succeeds
o.clone.bar = 10 # raises RuntimeError
The Rubinius implementation for these methods
is often my source for answers to these questions, since it is quite clear, and a fairly compliant Ruby implementation.
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Where are the Properties.Settings.Default stored?
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bluish
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answered Jun 11 '09 at 17:13
jasonhjasonh
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Is there any simple way to find out unused strings in Android project?
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edited Sep 25 '17 at 16:50
jakub.g
27.4k77 gold badges7171 silver badges107107 bronze badges
answered F...
Develop Android app using C#
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edited Jan 7 '14 at 10:23
answered Jun 9 '12 at 15:14
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Status bar won't disappear
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220
Try adding the following method to your app's root view controller:
- (BOOL)prefersStatusBarHid...
How to tell if UIViewController's view is visible
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1109
The view's window property is non-nil if a view is currently visible, so check the main view in...
How to read a file without newlines?
...not already present
f.write('\n')
f.flush()
f.seek(0)
lines = [line[:-1] for line in f]
Or a simpler alternative is to strip the newline instead:
[line.rstrip('\n') for line in file]
Or even, although pretty unreadable:
[line[:-(line[-1] == '\n') or len(line)+1] for...
Set up a scheduled job?
...ter version of windows the at command is deprecated for Windows 8, Server 2012 and above. You can use schtasks.exe for same use.
**** UPDATE ****
This the new link of django doc for writing the custom management command
sha...
How to load db:seed data into test database automatically?
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120
The db:seed rake task primarily just loads the db/seeds.rb script. Therefore just execute that f...