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Difference between `data` and `newtype` in Haskell
...e. In particular, data introduces a type that is "lifted", meaning, essentially, that it has an additional way to evaluate to a bottom value. Since there's no additional constructor at runtime with newtype, this property doesn't hold.
That extra pointer in the Book to (,) constructor allows us to ...
Gray out image with CSS?
...initely doesn't work in IE10, IE11, FF26, Safari 5.1.x (Win7 x64), or basically anything outside of Chrome (example.)
– nickb
Feb 10 '14 at 8:56
2
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Android Shared preferences for creating one time activity (example) [closed]
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apply() is asynchronous call to perform disk I/O where as commit() is synchronous. So avoid calling commit() from the UI thread.
– Aniket Thakur
Nov 10 '15 at 8:55
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Overwrite or override
...ority to reject or cancel (a decision, view, etc.)
– allicarn
Nov 15 '12 at 19:50
add a comme...
Can I tell the Chrome script debugger to ignore jquery.js?
...?) to not break within certain files? To assume they're not broken, essentially? This seems like something they might build in.
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How do I run only specific tests in Rspec?
...onfiguration option treat_symbols_as_metadata_keys_with_true_values, which allows you to do:
describe "Awesome feature", :awesome do
where :awesome is treated as if it were :awesome => true.
Also see this answer for how to configure RSpec to automatically run 'focused' tests. This works especi...
How to see if an object is an array without using reflection?
...Object is an array without using reflection?
And how can I iterate through all items without using reflection?
6 Answers
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What is PEP8's E128: continuation line under-indented for visual indent?
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This is so ubiquitous in Django code I've seen (plus it's all over their docs) that it arguably supersedes PEP-8, after all it says "Many projects have their own coding style guidelines. In the event of any conflicts, such project-specific guides take precedence for that project."
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Rails ActiveRecord date between
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I would personally created a scope to make it more readable and re-usable:
In you Comment.rb, you can define a scope:
scope :created_between, lambda {|start_date, end_date| where("created_at >= ? AND created_at <= ?", start_date, e...
How can I delete a newline if it is the last character in a file?
...e:
perl -pi -e 'chomp if eof' filename
[Editor's note: -pi -e was originally -pie, but, as noted by several commenters and explained by @hvd, the latter doesn't work.]
This was described as a 'perl blasphemy' on the awk website I saw.
But, in a test, it worked.
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