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Does Swift have access modifiers?
...Enable an entity to be used outside the defining module (target). You typically use open or public access when specifying the public interface to a framework.
However, open access applies only to classes and class members, and it differs from public access as follows:
public classes and class mem...
Drop data frame columns by name
...d like to remove from a data frame. I know that we can delete them individually using something like:
20 Answers
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Function Pointers in Java
... It even has std::bind, which binds parameters to functions and returns a callable object. I can't defend C on these grounds, but C++ really is better than Java for this.
– zneak
Mar 2 '11 at 4:48
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How to pass parameters correctly?
... Are there any best practices of how to send parameters in C++ because I really find it, let's say, not trivial
If your function needs to modify the original object being passed, so that after the call returns, modifications to that object will be visible to the caller, then you should pass by lva...
Good or bad practice? Initializing objects in getter
... it seems... according to my co-worker at least. We've been working on a small project together. The way I wrote the classes is (simplified example):
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Why should casting be avoided? [closed]
I generally avoid casting types as much as possible since I am under the impression that it's poor coding practice and may incur a performance penalty.
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Is there a better alternative than this to 'switch on type'?
...Text = "Not sure what is hovered over"));
The code for TypeSwitch is actually pretty small and can easily be put into your project.
static class TypeSwitch {
public class CaseInfo {
public bool IsDefault { get; set; }
public Type Target { get; set; }
public Action<o...
Purpose of returning by const value? [duplicate]
...
In the hypothetical situation where you could perform a potentially expensive non-const operation on an object, returning by const-value prevents you from accidentally calling this operation on a temporary. Imagine that + returned a non-const value, and you could write:
(a + b).expensiv...
How to call asynchronous method from synchronous method in C#?
I have a public async void Foo() method that I want to call from synchronous method. So far all I have seen from MSDN documentation is calling async methods via async methods, but my whole program is not built with async methods.
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pull/push from multiple remote locations
...ote command:
git remote add alt alt-machine:/path/to/repo
To fetch from all the configured remotes and update tracking branches, but not merge into HEAD, do:
git remote update
If it's not currently connected to one of the remotes, it will take time out or throw an error, and go on to the next....