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Calculate difference in keys contained in two Python dictionaries
Suppose I have two Python dictionaries - dictA and dictB . I need to find out if there are any keys which are present in dictB but not in dictA . What is the fastest way to go about it?
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Static linking vs dynamic linking
Are there any compelling performance reasons to choose static linking over dynamic linking or vice versa in certain situations? I've heard or read the following, but I don't know enough on the subject to vouch for its veracity.
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Devise Secret Key was not set
I am developing a Rails 4 app using the Active Admin gem for the administration back end. Active Admin in turn uses Devise for user authentication. Now, when I try to deploy the app using capistrano on the VPS server, I get the below error:
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What 'sensitive information' could be disclosed when setting JsonRequestBehavior to AllowGet
I've been getting the same old error every time I test a new URL from my browser's address bar when I'm returning Json (using the built-in MVC JsonResult helper ):
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Set transparent background of an imageview on Android
I am using a web view in which I am adding an image view. How can I set the background of this image view to transparent?
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Find the min/max element of an Array in JavaScript
How can I easily obtain the min or max element of a JavaScript Array?
51 Answers
51
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How to write a foreach in SQL Server?
I am trying to achieve something along the lines of a for-each, where I would like to take the Ids of a returned select statement and use each of them.
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What does a lazy val do?
I noticed that Scala provide lazy vals . But I don't get what they do.
7 Answers
7
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Applicatives compose, monads don't
What does the above statement mean? And when is one preferable to other?
5 Answers
5
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What is a message pump?
In this thread (posted about a year ago) there is a discussion of problems that can come with running Word in a non-interactive session. The (quite strong) advice given there is not to do so. In one post it is stated "The Office APIs all assume you are running Office in an interactive session on...