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Operator overloading : member function vs. non-member function?
...use it can have only one parameter and the other parameter passed automatically is the this pointer. So no standard exists to compare them. On the other hand, overloaded operator declared as a friend is symmetric because we pass two arguments of the same type and hence, they can be compared.
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Do we still need end slashes in HTML5?
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@FreeRadical is correct. This answer is technically incorrect, because it confuses an ending slash with an end tag, and thus misunderstands the spec paragraphs that it quotes. This leads to @YannisDran's confusion. @minitech correctly states what is true.
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How to prevent ReflectionTypeLoadException when calling Assembly.GetTypes()
...e following code limits the types to those located within the assembly and allows a predicate to further restrict the list of types.
/// <summary>
/// Get the types within the assembly that match the predicate.
/// <para>for example, to get all types within a namespace</p...
Check if a Postgres JSON array contains a string
...nswered Nov 26 '14 at 8:16
SnowballSnowball
8,03433 gold badges2929 silver badges4444 bronze badges
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How to generate an openSSL key using a passphrase from the command line?
... running on the machine at the time, since command-line arguments are generally visible to all processes.
A better alternative is to write the passphrase into a temporary file that is protected with file permissions, and specify that:
openssl genrsa -aes128 -passout file:passphrase.txt 3072
Or s...
Significance of bool IsReusable in http handler interface
... writing a http handler/module, there is an interface member to implement called - bool IsReusable .
3 Answers
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How to invoke a Linux shell command from Java
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Thank you. This worked. Actually I used "sh" instead of "csh".
– Farshid
Jun 2 '12 at 11:12
5
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What is the most efficient way to create a dictionary of two pandas Dataframe columns?
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I found a faster way to solve the problem, at least on realistically large datasets using:
df.set_index(KEY).to_dict()[VALUE]
Proof on 50,000 rows:
df = pd.DataFrame(np.random.randint(32, 120, 100000).reshape(50000,2),columns=list('AB'))
df['A'] = df['A'].apply(chr)
%timeit dict(zip(df...
Undo a particular commit in Git that's been pushed to remote repos
... And use the -n switch if you want the code back, but not automatically committed in again
– jaygooby
Nov 22 '11 at 12:09
18
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How do you display code snippets in MS Word preserving format and syntax highlighting?
... Please note tath this requires open/libre office to be installed on your machine.
– BetaRide
Oct 10 '13 at 6:06
16
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