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do..end vs curly braces for blocks in Ruby
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249
The general convention is to use do..end for multi-line blocks and curly braces for single lin...
Get Image size WITHOUT loading image into memory
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edited Sep 26 '13 at 18:14
answered Sep 26 '13 at 17:37
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Draw line in UIView
...y to do it. For example, I want to draw a black horizontal line at y-coord=200.
8 Answers
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Specifying Maven's local repository location as a CLI parameter
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260
use maven property maven.repo.local:
mvn -Dmaven.repo.local=$HOME/.my/other/repository clean ...
Getting current directory in .NET web application
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2 Answers
2
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How do I build a numpy array from a generator?
...erate(gimme()): my_array[i] = el
1 is probably what you're looking for. 2 is space inefficient, and 3 is time inefficient (you have to go through the generator twice).
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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
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Retrieving the last record in each group - MySQL
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27 Answers
27
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