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Javascript and regex: split string and keep the separator
... @PaulJones the content was moved in the intervening time. Thanks for letting me know, I fixed the link.
– Jon
Apr 15 at 16:11
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Assignment in an if statement
...s followed by if" is almost always used this way, it might make more sense for there to be an operator which performs both parts in one go. This isn't currently in C# 6, but may be part of C# 7, if the pattern matching proposal is implemented.
The problem is that you can't declare a variable in the...
Can you grab or delete between parentheses in vi/vim?
...e cursor. Position the cursor on the opening (or closing) paren and use y% for yanking or d% for deleting everything from the cursor to the matching paren.
This works because % is a "motion command", so it can be used anywhere vim expects such a command. From :help y:
["x]y{motion} Yank {mot...
Input and output numpy arrays to h5py
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h5py provides a model of datasets and groups. The former is basically arrays and the latter you can think of as directories. Each is named. You should look at the documentation for the API and examples:
http://docs.h5py.org/en/latest/quick.html
A simple example where you a...
NSInvocation for Dummies?
...d, and then invoke it (actually send it to the target object) later on.
For example, let's say you want to add a string to an array. You would normally send the addObject: message as follows:
[myArray addObject:myString];
Now, let's say you want to use NSInvocation to send this message at so...
URL-parameters and logic in Django class-based views (TemplateView)
...ou shouldn't since they are at the class level and are class variables. As for the NameError, where are you trying to do year = self.kwargs['year']? You should be doing it in a method, you can't do it at the class level. So for example, you are using a TemplateView which means that you would do the ...
Android Use Done button on Keyboard to click button
Ok in my app I have a field for the user to input a number. I have the field set to only accept numbers. When the user clicks on the field it brings up the keyboard. On the keyboard (on ICS) there is a done button. I would like for the done button on the keyboard to trigger the submit button i have ...
Is C++14 adding new keywords to C++?
... float protected thread_local
const_cast for public throw
Table 4 in N3337 (C++11):
alignas continue friend register true
alignof decltype goto reinterpret_cast try
a...
Replacing Spaces with Underscores
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This is part of my code which makes spaces into underscores for naming my files:
$file = basename($_FILES['upload']['name']);
$file = str_replace(' ','_',$file);
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Multiple aggregations of the same column using pandas GroupBy.agg()
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It has already been said, but using dictionaries for renaming output columns from age is deprecated. You can instead specify a list of tuples. See this answer.
– cs95
Jan 22 '19 at 1:53
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