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How to return an empty ActiveRecord relation?

...and it takes an argument, depending on the value of the argument, I might know that there will not be any matches, but I still want to return a relation, not an empty array: ...
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How are the points in CSS specificity calculated

...zemonger pointed out earlier in the year, webkit browsers (chrome, safari) now appear to use a higher base than 256. Perhaps 216, like Opera? IE and Firefox still use 256. share | improve this answe...
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Capture Image from Camera and Display in Activity

... @Harsha M V This is a known bug on Samsung Galaxy. Please see this answer stackoverflow.com/questions/7031374/… – Oh Danny Boy Sep 29 '11 at 19:16 ...
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Meteor test driven development [closed]

...bit of modification to expose themselves to Mocha, and this requires some knowledge of how Node.js works. Think of each Node.js file as being executed within its own scope. Meteor automatically exposes objects in different files to one another, but ordinary Node applications—like Mocha—do not do...
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How do I parse an ISO 8601-formatted date?

... only) in ambiguous cases. So ONLY use it if you need to parse input of unknown format and are okay to tolerate occasional misreads. – ivan_pozdeev Apr 23 '15 at 23:34 2 ...
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How get integer value from a enum in Rails?

...turns the integer value Update for rails 5 For rails 5 the above method now returns the string value :( The best method I can see for now is: my_model.sale_info_before_type_cast Shadwell's answer also continues to work for rails 5. ...
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PHP CURL CURLOPT_SSL_VERIFYPEER ignored

...HTTPS. Everything was working fine untill I ran upgrade of curl libraries. Now I am experiencing this response when trying to perform CURL requests: Problem with the SSL CA cert (path? access rights?) ...
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What are the key differences between Apache Thrift, Google Protocol Buffers, MessagePack, ASN.1 and

...t about other libraries and how it's usable in common? Also, it seems Avro now has IDL with C-like syntax in addition to JSON one. – andreypopp Jan 8 '11 at 12:30 2 ...
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Curious null-coalescing operator custom implicit conversion behaviour

...ils here. We have a nullable optimizer that looks for situations where we know that a particular expression of nullable type cannot possibly be null. Consider the following naive analysis: we might first say that result = Foo() ?? y; is the same as A? temp = Foo(); result = temp.HasValue ? ...
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Using Selenium Web Driver to retrieve value of a HTML input

... That's what I've bumped into right now: trying to get a value from a textarea, which is neither a "value" attribute, nor a between-tag text (set dynamically as "value" attribute. – C-F Jun 5 '17 at 22:03 ...