大约有 45,000 项符合查询结果(耗时:0.0811秒) [XML]
counting number of directories in a specific directory
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iPhone: How to get current milliseconds?
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Difference between Big-O and Little-O Notation
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edited Dec 16 '17 at 18:37
Mohamed El-Nakib
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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...
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...
See what process is using a file in Mac OS X
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edited Aug 10 '19 at 16:03
agillgilla
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Calculate date/time difference in java [duplicate]
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