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Delete column from pandas DataFrame
...lass, then a = A(); del a.var works just fine...
– dwanderson
Oct 4 '16 at 14:24
15
@dwanderson t...
What does “Protocol … can only be used as a generic constraint because it has Self or associated typ
...has the following requirement:
func ==(lhs: Self, rhs: Self) -> Bool
And a protocol that contains Self somewhere inside it cannot be used anywhere except in a type constraint.
Here is a similar question.
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Populate a Razor Section From a Partial
...red by a partial at the bottom of the page with the rest of the Javascript and not in the middle of the page where the partial is rendered.
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Python: print a generator expression?
...rn the generator expression into a list comprehension. It's the same thing and calling list() on it. So the way to make a generator expression into a list is to put brackets around it.
Detailed explanation:
A generator expression is a "naked" for expression. Like so:
x*x for x in range(10)
Now,...
Should I hash the password before sending it to the server side?
... is a silver bullet, which it is not. It certainly helps greatly however, and should be used in any authenticated session.
There is really no need to know what an original password is. All that is required is a reliable way to generate (and reliably re-generate) an authentication "key" based on t...
What's the purpose of using braces (i.e. {}) for a single-line if or loop?
I'm reading some lecture notes of my C++ lecturer and he wrote the following:
23 Answers
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How can I take more control in ASP.NET?
...ls. It's easier to work with for your purposes. Just use regular HTML tags and put runat="server" and give them an ID. Then you can access them programmatically and code without a ViewState.
The only downside is that you won't have access to many of the "helpful" ASP.NET server controls like GridV...
List of strings to one string
...two also WORK, but I think the Join function was written for this purpose, and I would guess, the most efficient. I could be wrong though...
As per @Nuri YILMAZ without .ToArray(), but this is .NET 4+:
String.Join(String.Empty, los);
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PHP: exceptions vs errors?
...ere in the PHP manual, but what exactly is the difference between an error and an exception? The only difference that I can see is that errors and exceptions are handled differently. But what causes an exception and what causes an error?
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How can I change my Cygwin home folder after installation?
I just installed Cygwin, and it looks like the home directory in the bash prompt is on my Z: drive. That's not where I want it.
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