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handlerbars.js check if list is empty
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209
The "each" tag can take an "else" section too. So the simplest form is:
{{#each items}}
// ren...
Javascript reduce on array of objects
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edited Aug 30 '17 at 14:05
answered Apr 20 '11 at 14:34
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How to map and remove nil values in Ruby
...ct 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 good read on t...
How do I check in JavaScript if a value exists at a certain array index?
...y, arrays in JavaScript contain array.length elements, starting with array[0] up until array[array.length - 1]. An array element with index i is defined to be part of the array if i is between 0 and array.length - 1 inclusive. If i is not in this range it's not in the array.
So by concept, arrays...
How to verify a method is called two times with mockito verify()
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edited Dec 10 '19 at 4:48
Community♦
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answered Feb 15 '13 at 7:41
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How can I do something like a FlowLayout in Android?
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answered Dec 17 '10 at 20:31
Romain GuyRomain Guy
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What does ON [PRIMARY] mean?
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keuleJ
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answered May 9 '10 at 16:00
blowdartblowdart
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JavaScript arrays braces vs brackets
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edited Nov 6 '13 at 17:02
Ben_Coding
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answered Feb 26 '11 at 20:...
Create a tag in a GitHub repository
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1590
You can create tags for GitHub by either using:
the Git command line, or
GitHub's web interfac...
PostgreSQL, checking date relative to “today”
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answered Oct 13 '10 at 22:37
Paul TomblinPaul Tomblin
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