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Pandas: drop a level from a multi-level column index?
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edited Mar 28 '16 at 16:32
ASGM
8,6282424 silver badges4545 bronze badges
answered Mar 6 ...
What is an unsigned char?
...rs, use:
signed char, which gives you at least the -127 to 127 range. (-128 to 127 is common)
unsigned char, which gives you at least the 0 to 255 range.
"At least", because the C++ standard only gives the minimum range of values that each numeric type is required to cover. sizeof (char) is requ...
What's the shebang/hashbang (#!) in Facebook and new Twitter URLs for?
...This used to tell Google how to index the page.
https://developers.google.com/webmasters/ajax-crawling/
This technique has mostly been supplanted by the ability to use the JavaScript History API that was introduced alongside HTML5. For a URL like www.example.com/ajax.html#!key=value, Google will c...
How to get the Android device's primary e-mail address
...unt names on the device. Fortunately, for certain account types (including com.google), the account names are email addresses. Example snippet below.
Pattern emailPattern = Patterns.EMAIL_ADDRESS; // API level 8+
Account[] accounts = AccountManager.get(context).getAccounts();
for (Account account :...
How to make a SPA SEO crawlable?
...e Breezejs for client-server data interaction, all of which I strongly recommend, but I'll try to give a general enough explanation that will also help people using other platforms.
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PHP Warning: PHP Startup: Unable to load dynamic library
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edited Nov 22 '16 at 8:28
Ken Y-N
11.6k1313 gold badges5858 silver badges8989 bronze badges
answered ...
Do a “git export” (like “svn export”)?
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Most of the time that I need to 'export' something from git, I want a compressed archive in any case so I do something like this.
git archive master | bzip2 >source-tree.tar.bz2
ZIP archive:
git archive --format zip --output /full/path/to/zipfile.zip master
git help archive for more d...
How to download image using requests
...se.
To use the response.raw file-like object will not, by default, decode compressed responses (with GZIP or deflate). You can force it to decompress for you anyway by setting the decode_content attribute to True (requests sets it to False to control decoding itself). You can then use shutil.copyfi...
Datatables: Cannot read property 'mData' of undefined
...answer addresses
– Moses Machua
Jun 28 '17 at 15:15
1
You my friend are a steely eyed missile man...
Wolfram's Rule 34 in XKCD [closed]
...enever a three-bit string matches rule 2's configuration, the center bit becomes (or stays, in this case) true on the next iteration.
A CA's rules are described as a bitstring. Say it's rule 110 (my favorite). In binary, 110 is 01101110. The digit of least significance is zero. This means that if t...