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NumPy array initialization (fill with identical values)
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On my system (Python 2.7, Numpy 1.8), np.full() is actually slightly slower than np.empty() followed by np.fill().
– John Zwinck
Jul 25 '14 at 8:37
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SQL Group By with an Order By
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In all versions of MySQL, simply alias the aggregate in the SELECT list, and order by the alias:
SELECT COUNT(id) AS theCount, `Tag` from `images-tags`
GROUP BY `Tag`
ORDER BY theCount DESC
LIMIT 20
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How to convert string to Title Case in Python?
...iends from the UK".title()
"They'Re Bill'S Friends From The Uk"
If you really wanted PascalCase you can use this:
>>> ''.join(x for x in 'make IT pascal CaSe'.title() if not x.isspace())
'MakeItPascalCase'
share...
指定组件的大小 · App Inventor 2 中文网
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When you create a visible component in the designer, you are typically given the opportunity to specify its height and width. There are four choices:
Automatic: Size is chosen by the system
Fill parent: Size is chosen to fill the space available.
Size specified in pixels
Size in ...
JavaScript, Node.js: is Array.forEach asynchronous?
...mentation of JavaScript: Does it behave asynchronously?
For example, if I call:
10 Answers
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How do I force “git pull” to overwrite local files?
... content), these files will not be affected.
First, run a fetch to update all origin/<branch> refs to latest:
git fetch --all
Then, you have two options:
git reset --hard origin/master
OR If you are on some other branch:
git reset --hard origin/<branch_name>
Explanation:
git fetch do...
How to overlay images
...ct. The HTML side looked a bit like this:
<a href="[fullsize]" class="gallerypic" title="">
<img src="[thumbnail pic]" height="90" width="140" alt="[Gallery Photo]" class="pic" />
<span class="zoom-icon">
<img src="/images/misc/zoom.gif" width="32" height="32" alt="Zo...
git update-index --assume-unchanged on directory
...perfectly with filenames with spaces.
This command will get git to assume all files in and under the listed directory are unchanged:
find path/to/dir -type f -exec git update-index --assume-unchanged '{}' \;
Find takes every argument after -exec until ; (which you have to escape lest your shell ...
Default background color of SVG root element
...ways matches the viewport it gets, so it won't fill the entire viewport in all situations.
– Erik Dahlström
Jul 2 '12 at 12:48
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How to get existing fragments when using FragmentPagerAdapter
...agerAdapter , as a helper class that implements the management of tabs and all details of connecting a ViewPager with associated TabHost . I have implemented FragmentPagerAdapter just as same as it is provided by the Android sample project Support4Demos .
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