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How to understand nil vs. empty vs. blank in Ruby
...false.blank? == true
[].blank? == true
{}.blank? == true
"".blank? == true
5.blank? == false
0.blank? == false
.blank? also evaluates true on strings which are non-empty but contain only whitespace:
" ".blank? == true
" ".empty? == false
Rails also provides .present?, which returns the negati...
setResult does not work when BACK button pressed
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159
You need to overide the onBackPressed() method and set the result before the call to superclass...
How do I get the day of the week with Foundation?
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edited Nov 24 '10 at 16:54
answered Nov 24 '10 at 16:40
V...
Map over object preserving keys
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GG.GG.
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Is it wrong to use Deprecated methods or classes in Java?
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15 Answers
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Can Mockito stub a method without regard to the argument?
...ze'.
– Eric Wilson
May 11 '11 at 19:50
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There's a notNull(Bazoo.class) just like the any(Bazoo....
Why use iterators instead of array indices?
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einpoklum
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answered Sep 25 '08 at 3:10
wilhelmtellwil...
Get table column names in MySQL?
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555
You can use DESCRIBE:
DESCRIBE my_table;
Or in newer versions you can use INFORMATION_SCHEM...
Is there shorthand for returning a default value if None in Python? [duplicate]
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5 Answers
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In Functional Programming, what is a functor?
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edited Feb 11 '11 at 4:35
answered Jan 8 '10 at 23:05
Nor...