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How to swap keys and values in a hash
... out[value] << key
end
end
end
Note: This code with tests is now on GitHub.
Or:
class Hash
def safe_invert
self.each_with_object({}){|(k,v),o|(o[v]||=[])<<k}
end
end
share
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invalid target release: 1.7
...red Nov 26 '13 at 13:18
Michał NowakMichał Nowak
1,68711 gold badge1212 silver badges1616 bronze badges
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How to interpret API documentation function parameters?
...d I can't find it on Adobe's scripting page) there really is not a way to know which format the Adobe API is expecting. However, there should be an explanation at the top of most documentation explaining the conventions used within.
So, this function could probably be used many ways :
fillPath() //N...
How to validate an email address in JavaScript
... here you have another RFC 2822 compliant regex
The official standard is known as RFC 2822. It describes the syntax that valid email addresses must adhere to. You can (but you shouldn't — read on) implement it with this regular expression:
(?:[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'...
Output array to CSV in Ruby
...file using CSV.table, did some manipulations, got rid of some columns, and now I want to spool the resulting Array of Hashes out again as CSV (really tab-delimited). How to? gist.github.com/4647196
– tamouse
Jan 27 '13 at 7:13
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Populate a Razor Section From a Partial
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@JohnBubriski There is in Razor 2. Don't know about prev. versions.
– Shimmy Weitzhandler
Nov 26 '12 at 10:18
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What is the _snowman param in Ruby on Rails 3 forms for?
...sing the form_tag or form_for helpers there is a hidden field named _snowman with the value of ☃ ( Unicode \x9731) showing up.
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How assignment works with Python list slice?
Python doc says that slicing a list returns a new list.
Now if a "new" list is being returned I've the following questions related to "Assignment to slices"
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How do I check if a type is a subtype OR the type of an object?
... that Baseis (obviously) not a subclass of itself.
Type.IsAssignableFrom
Now, this will answer your particular question, but it will also give you false positives. As Eric Lippert has pointed out in the comments, while the method will indeed return True for the two above questions, it will also re...
Apache: “AuthType not set!” 500 Error
...ed
Satisfy Any
This should resolve your problem, or at least did for me. Now the problem will probably be much harder to solve if you have more complex access rules...
See also this fairly similar question. The Debian wiki also has useful instructions for supporting both 2.2 and 2.4.
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