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[] and {} vs list() and dict(), which is better?
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In terms of speed, it's no competition for empty lists/dicts:
>>> from timeit import...
Disable Maven warning message - “Selected war files include a WEB-INF/web.xml which will be ignored”
When building WAR package using Maven 2.1.1, I get this warning message:
3 Answers
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Consistency of hashCode() on a Java string
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I can see that documentation as far back as Java 1.2.
While it's true that in general you sho...
How to map and remove nil values in Ruby
... and I'd expect it to become the norm very soon.
For example:
numbers = [1, 2, 5, 8, 10, 13]
enum.filter_map { |i| i * 2 if i.even? }
# => [4, 16, 20]
In your case, as the block evaluates to falsey, simply:
items.filter_map { |x| process_x url }
"Ruby 2.7 adds Enumerable#filter_map" is a g...
How to make rounded percentages add up to 100%
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17 Answers
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Rollback a Git merge
... feeling the moxy (and haven't done anything else): git reset --hard HEAD@{1}
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I change the capitalization of a directory and Git doesn't seem to pick up on it
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11 Answers
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Batch file include external file for variables
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Note: I'm assuming Windows batch files as most people seem to be unaware that there are signif...