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Correct way to add external jars (lib/*.jar) to an IntelliJ IDEA project
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What is a good use case for static import of methods?
...;
}
}
This has advantages and disadvantages. It makes the code a bit more readable at the expense of losing some immediate information about where the method is defined. However, a good IDE will let you go to the definition, so this isn't much of an issue.
You should still use this sparingly,...
What is difference between functional and imperative programming languages?
...t side effects.
Easier testing and debugging. Because pure functions can more easily be tested in isolation, you can write test code that calls the pure function with typical values, valid edge cases, and invalid edge cases.
For OOP People or
Imperative languages:
Object-oriented languages are...
What is the best way to repeatedly execute a function every x seconds?
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Condition within JOIN or WHERE
...f the criteria in the WHERE simply to make the lists of filtering criteria more easily maintainable.
For example, instead of:
SELECT *
FROM Customers c
INNER JOIN CustomerAccounts ca
ON ca.CustomerID = c.CustomerID
AND c.State = 'NY'
INNER JOIN Accounts a
ON ca.AccountID = a.AccountID
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What is the difference between PS1 and PROMPT_COMMAND
...s and Bob's answer I think that writing it as he describes is better. It's more maintainable than what I originally wrote above, where the PS1 variable is set inside the PROMPT_COMMAND, which itself is a super complicated string that is evaluated at runtime by bash. It works, but it's more complicat...
Doctrine and composite unique keys
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Why does my JavaScript code receive a “No 'Access-Control-Allow-Origin' header is present on the req
...p.route("/")
def helloWorld():
return "Hello, cross-origin-world!"
For more details, you can check the Flask documentation.
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Case-Insensitive List Search
...at if the list contains null entries, this can blow up. In that case it is more safe to say keyword.Equals(x, StringComparison.OrdinalIgnoreCase) than x.Equals(keyword, StringComparison.OrdinalIgnoreCase) (if you can guarantee that the keyword is never null).
– Jeppe Stig Niels...
MVC Vs n-tier architecture
...se the difference between a layer and a tier. It is true that you can run more than one tier on a physical mahcine (e.g. you divide up a big server via hypervisors), but the point here is N-Tier aludes to a physical network hop (e.g. TCP/IP). Locally you would be more efficent to use named pipes, ...