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“for” vs “each” in Ruby
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This is the only difference:
each:
irb> [1,2,3].each { |x| }
=> [1, 2, 3]
irb> x
NameError: undefined local variable or method `x' for main:Object
from (irb):2
from :0
for:
irb> for x in [1,2,3]; end
=> [1, 2, 3]
irb> x
=> 3
With t...
Programmatically change input type of the EditText from PASSWORD to NORMAL & vice versa
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22 Answers
22
Active
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Retrieving the last record in each group - MySQL
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27 Answers
27
Active
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What's the recommended approach to resetting migration history using Django South?
I've accumulated quite a few migrations using South (0.7) and Django (1.1.2) which are starting to consume quite a bit of time in my unit tests. I would like to reset the baseline and start a fresh set of migrations. I've reviewed the South documentation , done the usual Google/Stackoverflow search...
Libraries not found when using CocoaPods with iOS logic tests
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224
CocoaPods 1.0 has changed the syntax for this. It now looks like this:
def shared_pods
po...
cannot load such file — zlib even after using rvm pkg install zlib
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201
I ended up installing zlib from apt-get and then reinstalling ruby to not use the rvm director...
Create a dictionary on a list with grouping
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edited Oct 3 '13 at 17:23
Dov
13.2k1010 gold badges6767 silver badges145145 bronze badges
answered Ju...
Getting View's coordinates relative to the root layout
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ramblinjanramblinjan
6,13833 gold badges2626 silver badges3838 bronze badges
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Allowing Untrusted SSL Certificates with HttpClient
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answered Sep 23 '13 at 2:15
Claire NovotnyClaire Novotny
1,47911 gold badge1313 silver badges1818 bronze badges
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How can I add items to an empty set in python
...; type(d)
<type 'set'>
>>> d.update({1})
>>> d.add(2)
>>> d.update([3,3,3])
>>> d
set([1, 2, 3])
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