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What is a patch in git version control?
...as another concrete example.
Nowadays, the GitHub pull request makes it really easy to apply patches on GitHub repos, which is useful when you aren't a direct contributor (ie you have no right to directly push to a repo).
Actually, fairly recently GitHub introduced "Better Pull Request Emails" to i...
What is the purpose of the EBP frame pointer register?
...sembly language and have noticed that the x86 code emitted by compilers usually keeps the frame pointer around even in release/optimized mode when it could use the EBP register for something else.
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Why is `std::move` named `std::move`?
The C++11 std::move(x) function doesn't really move anything at all. It is just a cast to r-value. Why was this done? Isn't this misleading?
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How to initialize a dict with keys from a list and empty value in Python?
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dict.fromkeys([1, 2, 3, 4])
This is actually a classmethod, so it works for dict-subclasses (like collections.defaultdict) as well. The optional second argument specifies the value to use for the keys (defaults to None.)
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How to “perfectly” override a dict?
...or other builtins) directly. It often makes no sense, because what you actually want to do is implement the interface of a dict. And that is exactly what ABCs are for.
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Load and execute external js file in node.js with access to local variables?
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Just do a require('./yourfile.js');
Declare all the variables that you want outside access as global variables.
So instead of
var a = "hello" it will be
GLOBAL.a="hello" or just
a = "hello"
This is obviously bad. You don't want to be polluting the global scope.
Ins...
When is JavaScript synchronous?
... synchronous and when it will be asynchronous? Does jQuery affect this at all?
7 Answers
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MVVM in WPF - How to alert ViewModel of changes in Model… or should I?
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RaisePropertyChanged("ViewModelCopyOfSomeProperty");
}
But typically this is only needed if more than one object will be making changes to the Model's data, which is not usually the case.
If you ever have a case where you don't actually have a reference to your Model property to attach t...
Most efficient way of making an if-elif-elif-else statement when the else is done the most?
...doThisMostOfTheTime)()
...looks like it ought to be faster, but it's actually slower than the if ... elif ... else construct, because it has to call a function, which can be a significant performance overhead in a tight loop.
Consider these examples...
1.py
something = 'something'
for i in xra...
Pass variables to Ruby script via command line
I've installed RubyInstaller on Windows and I'm running IMAP Sync but I need to use it to sync hundreds of accounts. If I could pass these variables to it via command line I could automate the whole process better.
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