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Why can't the C# constructor infer type?
Why is type inference not supported for constructors the way it is for generic methods?
5 Answers
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What's the role of GetHashCode in the IEqualityComparer in .NET?
...teger representation of the object. Since there is no limit to how much information an object can contain, certain hash codes are shared by multiple objects - so the hash code is not necessarily unique.
A dictionary is a really cool data structure that trades a higher memory footprint in return fo...
Why does Environment.Exit() not terminate the program any more?
...rough Windows Update solved the problem. The noticeable 2 second delay before the crash is no longer present, strongly suggesting that the IsWindow() deadlock got solved. And the program shuts down cleanly and reliably. The update installed patches for Windows Defender, wdboot.sys, wdfilter.sys, ...
Comparing boxed Long values 127 and 128
...if conditions. When these values are less than 128 , the if condition works properly, but when they are greater than or equal to 128 , comparison fails.
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Is there a short contains function for lists?
... this syntax:
if myItem in list:
# do something
Also, inverse operator:
if myItem not in list:
# do something
It's work fine for lists, tuples, sets and dicts (check keys).
Note that this is an O(n) operation in lists and tuples, but an O(1) operation in sets and dicts.
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Python group by
..., ('5594916', 'ETH'), ('1550003', 'ETH')]
>>> from collections import defaultdict
>>> res = defaultdict(list)
>>> for v, k in input: res[k].append(v)
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Then, convert that dictionary into the expected format.
>>> [{'type':k, 'items':v} for k,v in res.items()]
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How can I add an empty directory to a Git repository?
How can I add an empty directory (that contains no files) to a Git repository?
35 Answers
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What is the difference between POST and GET? [duplicate]
...y been getting involved with PHP/AJAX/jQuery and it seems to me that an important part of these technologies is that of POST and GET .
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Match whole string
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@Jake, I'm glad howards answer worked, but I think you should note it will only work when only abc is the only item in the string. For example, It would not match 'the first 3 letters in the alphabet are abc'
– matchew
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Maven project.build.directory
In Maven, what does the project.build.directory refer to? I am a bit confused, does it reference the source code directory or the target directory in the Maven project?
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