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Hidden features of Android development?
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Hopefully there aren't too many hidden, hidden features - but here's some of the less well known and non-intuitive features available for Android that will definitely make your life easier and your apps better.
All the source code for the platform and all the non-Google native apps is availabl...
Converting a Pandas GroupBy output from Series to DataFrame
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g1 here is a DataFrame. It has a hierarchical index, though:
In [19]: type(g1)
Out[19]: pandas.core.frame.DataFrame
In [20]: g1.index
Out[20]:
MultiIndex([('Alice', 'Seattle'), ('Bob', 'Seattle'), ('Mallory', 'Portland'),
('Mallory', '...
.gitignore all the .DS_Store files in every folder and subfolder
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I think the problem you're having is that in some earlier commit, you've accidentally added .DS_Store files to the repository. Of course, once a file is tracked in your repository, it will continue to be tracked even if it matches an entry in an applicable .gitignore fil...
How to manually expand a special variable (ex: ~ tilde) in bash
I have a variable in my bash script whose value is something like this:
15 Answers
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'git' is not recognized as an internal or external command
...ct the paths if necessary.
Modifying PATH on Windows 10:
In the Start Menu or taskbar search, search for "environment variable".
Select "Edit the system environment variables".
Click the "Environment Variables" button at the bottom.
Double-click the "Path" entry under "System variables".
With t...
moment.js - UTC gives wrong date
Why does moment.js UTC always show the wrong date. For example from chrome's developer console:
2 Answers
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Should functions return null or an empty object?
... returning a null will result in a null exception if you attempt to access members in the object, which can be useful for highlighting buggy code - attempting to access a member of nothing makes no sense. Accessing members of an empty object will not fail meaning bugs can go undiscovered.
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How to create PDFs in an Android app? [closed]
...m with iText is that it is a GPLv3 license, or else you must purchase a commercial license.
– Tony Maro
Apr 9 '11 at 17:54
5
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Concatenate multiple files but include filename as section headers
... know I can do this using the cat command. However, I would like the filename of each file to precede the "data dump" for that file. Anyone know how to do this?
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Call to undefined method mysqli_stmt::get_result
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Please read the user notes for this method:
http://php.net/manual/en/mysqli-stmt.get-result.php
It requires the mysqlnd driver... if it isn't installed on your webspace you will have to work with BIND_RESULT & FETCH!
https://secure.php.net/manual/en/mysq...