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One-liner to check whether an iterator yields at least one element?
...r, sentinel) is sentinel:
print('iterator was empty')
If you have no idea of what the iterator might possibly yield, make your own sentinel (e.g. at the top of your module) with
sentinel = object()
Otherwise, you could use, in the sentinel role, any value which you "know" (based on applicat...
Copy to clipboard in Node.js?
Is there a way you can copy to clipboard in Node.js? Any modules or ideas what so ever? I'm using Node.js on a desktop application. Hopefully that clears up why I want it to be able to achieve this.
...
returning in the middle of a using block
...nce to a variable.
using ( var x = new Something() ) {
// not a good idea
return x;
}
Just as bad
Something y;
using ( var x = new Something() ) {
y = x;
}
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How to get the current URL within a Django template?
...e brought to hypete's and Igancio's answers, I'll just summarize the whole idea here, for future reference.
If you need the request variable in the template, you must add the 'django.core.context_processors.request' to the TEMPLATE_CONTEXT_PROCESSORS settings, it's not by default (Django 1.4).
You m...
How to convert vector to array
...double arr[v.size()] is not valid. Using vector in place of new is a good idea, but the entire point of the question is how you can convert a vector into an array.
– RyanP
May 28 '15 at 13:30
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Static Block in Java [duplicate]
... maintain. I would argue that forcing them into the constructors may a bad idea, especially if you have more than one constructor and need to repeat the initialization. (If you for instance change from ArrayList to LinkedList you need to remember to change it in multiple places.)
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jQuery - prevent default, then continue default
...hin the form? That will also submit the form. So, it's probably not a good idea to rely on the submit button getting clicked.
– StackOverflowNewbie
Jan 17 '13 at 9:08
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“unrecognized import path” with go get
...go itself installed into /usr, not /usr/local. Set GOPATH to $HOME/go. Any idea what else to check ?
– Dfr
Dec 2 '14 at 15:45
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Good geometry library in python? [closed]
...ent seemed to be quite slow to execute - even for a simple 2D object. Any idea if it is good for processing geometry in real time? Thanks.
– Bill
Oct 11 '16 at 16:57
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Update a table using JOIN in SQL Server?
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Just because it's supported doesn't mean it's a good idea.
– Aaron Bertrand
Oct 13 '14 at 17:02
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