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What is the purpose of wrapping whole Javascript files in anonymous functions like “(function(){ … }
...ng its initialization is define a 'jQuery' global variable, as well as its more famous '$' global variable, which allows this code to work after jQuery has been included.
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When and why would you seal a class?
...s security features, so that the original object cannot be "impersonated".
More generally, I recently exchanged with a person at Microsoft, who told me they tried to limit the inheritance to the places where it really made full sense, because it becomes expensive performance-wise if left untreated. ...
What is the difference between integration testing and functional testing? [closed]
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Integration testing is when you test more than one component and how they function together. For instance how another system interacts with your system or the database interacts with your data abstraction layer. Usually this requires an fully installed system, a...
Convert date to datetime in Python
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How do I split a string so I can access item x?
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What exactly is OAuth (Open Authorization)?
...ram that adds your list of friends automatically because computers are far more efficient and effective at tiresome and error prone tasks. Since joining the network is now so easy, there is no way you would refuse such an offer, now would you?
Without an API for exchanging this list of contacts, yo...
What's a good rate limiting algorithm?
...conds. Every message that is forwarded deducts one unit, so you can't send more than five messages per every eight seconds.
Note that rate should be an integer, i.e. without non-zero decimal part, or the algorithm won't work correctly (actual rate will not be rate/per). E.g. rate=0.5; per=1.0; does...
Storing sex (gender) in database
...nly supports two possible genders which is inadequate. While INT supports more than two options, it takes 4 bytes -- performance will be better with a smaller/more narrow data type.
CHAR(1) has the edge over TinyINT - both take the same number of bytes, but CHAR provides a more narrow number of ...
What is the Swift equivalent of isEqualToString in Objective-C?
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With Swift you don't need anymore to check the equality with isEqualToString
You can now use ==
Example:
let x = "hello"
let y = "hello"
let isEqual = (x == y)
now isEqual is true.
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How to check that a string is a palindrome using regular expressions?
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The answer to this question is that "it is impossible". More specifically, the interviewer is wondering if you paid attention in your computational theory class.
In your computational theory class you learned about finite state machines. A finite state machine is composed of node...