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Is there any way in C# to override a class method with an extension method?
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No; an extension method never takes priority over an instance method with a suitable signature, and never participates in polymorphism (GetHashCode is a virtual method).
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Best way to find if an item is in a JavaScript array? [duplicate]
...cript 2016 you can use includes()
arr.includes(obj);
If you want to support IE or other older browsers:
function include(arr,obj) {
return (arr.indexOf(obj) != -1);
}
EDIT:
This will not work on IE6, 7 or 8 though. The best workaround is to define it yourself if it's not present:
Mozill...
How to merge two files line by line in Bash
I have two text files, each of them contains an information by line such like that
4 Answers
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Animate change of view controllers without using navigation controller stack, subviews or modal cont
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EDIT: New answer that works in any orientation.
The original answer only works when the interface is in portrait orientation. This is b/c view transition animations that replace a view w/ a different view must occur with views at least a level belo...
How do you exit from a void function in C++?
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Use a return statement!
return;
or
if (condition) return;
You don't need to (and can't) specify any values, if your method returns void.
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iOS: how to perform a HTTP POST request?
...g iOS development and I'd like to have one of my first applications to perform a HTTP POST request.
7 Answers
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Decoding JSON using json.Unmarshal vs json.NewDecoder.Decode
... the Decode method of json.Decoder, it buffers the entire JSON value in memory before unmarshalling it into a Go value. So in most cases it won't be any more memory efficient (although this could easily change in a future version of the language).
So a better rule of thumb is this:
Use json.Deco...
How do I do redo (i.e. “undo undo”) in Vim?
... I would just like to throw the undoTree plugin out there, super awesome for the times you have seemingly screwed yourself with a flurry of undos and redos.
– Jake Sellers
Jan 3 '14 at 5:31
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Some built-in to pad a list in python
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a += [''] * (N - len(a))
or if you don't want to change a in place
new_a = a + [''] * (N - len(a))
you can always create a subclass of list and call the method whatever you please
class MyList(list):
def ljust(self, n, fillvalue=''):
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How do I make the first letter of a string uppercase in JavaScript?
...e function with that same name in future).
...and then, there is so much more to this question when you consider internationalisation, as this astonishingly good answer (buried below) shows.
If you want to work with Unicode code points instead of code units (for example to handle Unicode character...