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How to check if an NSDictionary or NSMutableDictionary contains a key?
I need to check if an dict has a key or not. How?
15 Answers
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Choosing between std::map and std::unordered_map [duplicate]
Now that std has a real hash map in unordered_map , why (or when) would I still want to use the good old map over unordered_map on systems where it actually exists? Are there any obvious situations that I cannot immediately see?
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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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Best way to check if object exists in Entity Framework?
What is the best way to check if an object exists in the database from a performance point of view? I'm using Entity Framework 1.0 (ASP.NET 3.5 SP1).
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How do I get the current date in JavaScript?
How do I get current date in JavaScript?
56 Answers
56
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Determine if 2 lists have the same elements, regardless of order? [duplicate]
Sorry for the simple question, but I'm having a hard time finding the answer.
4 Answers
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querySelector and querySelectorAll vs getElementsByClassName and getElementById in JavaScript
I would like to know what exactly is the difference between querySelector and querySelectorAll against getElementsByClassName and getElementById ?
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Xcode “Build and Archive” from command line
Xcode 3.2 provides an awesome new feature under the Build menu, "Build and Archive" which generates an .ipa file suitable for Ad Hoc distribution. You can also open the Organizer, go to "Archived Applications," and "Submit Application to iTunesConnect."
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Setting up a JavaScript variable from Spring model by using Thymeleaf
I am using Thymeleaf as template engine. How I pass a variable from Spring model to JavaScript variable?
9 Answers
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