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Find() vs. Where().FirstOrDefault()
.... Find is available only for the List<T>. Methods that are generally more applicable, are then more reusable and have a greater impact.
I guess my next question would be why did they add the find at all. That is a good tip. The only thing I can think of is that the FirstOrDefault could ret...
C# - What does the Assert() method do? Is it still useful?
...ize the assert call? I thought it was only for unit tests. What does it do more than breakpoint? Since I can breakpoint, why should I use Assert?
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Truncating floats in Python
... would come up with 0.2 even though that's probably not what you want. For more on floating-point representation error, see the Python tutorial.
It's very rare to be working with a floating-point value that is so close to a round number and yet is intentionally not equal to that round number. So wh...
How do I copy a folder from remote to local using scp? [closed]
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Print a list in reverse order with range()?
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use reversed() function:
reversed(range(10))
It's much more meaningful.
Update:
If you want it to be a list (as btk pointed out):
list(reversed(range(10)))
Update:
If you want to use only range to achieve the same result, you can use all its parameters. range(start, stop, ...
Function to Calculate Median in SQL Server
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2019 UPDATE: In the 10 years since I wrote this answer, more solutions have been uncovered that may yield better results. Also, SQL Server releases since then (especially SQL 2012) have introduced new T-SQL features that can be used to calculate medians. SQL Server releases have a...
What's wrong with using $_REQUEST[]?
...ug when you have just a couple of users with old cookies you don't use any more hanging around and breaking the forms in ways no-one else can reproduce.
You can change this behaviour to the much more sensible GP (no C) order with the request_order config in PHP 5.3. Where this is not possible, I pe...
How best to determine if an argument is not sent to the JavaScript function
...bits the 'most correct' behaviour, but it might not be feasible if there's more than one optional argument.
The test for undefined is next 'best' - it only 'fails' if the function is explicitly called with an undefined value, which in all likelyhood should be treated the same way as omitting the ar...
How to write the Fibonacci Sequence?
...nformation about the Fibonacci Sequence on wikipedia and on wolfram. A lot more than you may need. Anyway it is a good thing to learn how to use these resources to find (quickly if possible) what you need.
Write Fib sequence formula to infinite
In math, it's given in a recursive form:
In progra...
Elegant ways to support equivalence (“equality”) in Python classes
... Three remarks: 1. In Python 3, no need to implement __ne__ anymore: "By default, __ne__() delegates to __eq__() and inverts the result unless it is NotImplemented". 2. If one still wants to implement __ne__, a more generic implementation (the one used by Python 3 I think) is: x = self._...