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Open a buffer as a vertical split in VIM
If you are editing a file in VIM and then you need to open an existing buffer (e.g. from your buffer list: :buffers ) how can you open it in a vertical split?
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Pure virtual destructor in C++
... {
public:
virtual ~A() = 0;
};
inline A::~A() { }
should suffice.
And since this got a down vote, I should clarify: If you derive anything from A and then try to delete or destroy it, A's destructor will eventually be called. Since it is pure and doesn't have an implementation, undefined be...
How to cancel a Task in await?
I'm playing with these Windows 8 WinRT tasks, and I'm trying to cancel a task using the method below, and it works to some point. The CancelNotification method DOES get called, which makes you think the task was cancelled, but in the background the task keeps running, then after it's completed, the ...
NuGet Package Manager errors when trying to update
...e an older version installed.
The workaround is to simply uninstall NuGet and then install it from the VS Extension Gallery. See http://support.microsoft.com/kb/2581019 for more information, or to go directly to the VS hotfix.
Note: If Visual Studio won't allow you to uninstall the extension (the ...
Why are Standard iterator ranges [begin, end) instead of [begin, end]?
Why does the Standard define end() as one past the end, instead of at the actual end?
7 Answers
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Java equivalent of C#'s verbatim strings with @
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i love c# 6 with @"string" and $"string{i}" and very futures more than java
– Guido Mocha
May 11 '17 at 7:39
5
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What is the difference between pluck and collect in Rails?
...er.first.gifts.collect(&:id)
You have objects with all fields loaded and you simply get the id thanks to the method based on Enumerable.
So:
if you only need the id with Rails 4, use ids: User.first.gifts.ids
if you only need some fields with Rails 4, use pluck: User.first.gifts.pluck(:id, ...
Why define an anonymous function and pass it jQuery as the argument?
...
The two blocks of code you have shown are dramatically different in when and why they execute. They are not exclusive of each other. They do not serve the same purpose.
JavaScript Modules
(function($) {
// Backbone code in here
})(jQuery);
This is a "JavaScript Module" pattern, implemented ...
How is attr_accessible used in Rails 4?
...ctice, though, this moves Rails away from fat model, thin controller, etc, and towards thin models, and really bloated controllers. You have to write all this stuff for every instance, it doesn't read nicely, and nesting seems to be a pain. The old attr_accessible/attr_accessor in the model system...
Google Maps API v3: How do I dynamically change the marker icon?
... you asking about the actual way to do it? You could just create each div, and a add a mouseover and mouseout listener that would change the icon and back for the markers.
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