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.rar, .zip files MIME Type
...wer(substr($file, - 4));
// RAR magic number: Rar!\x1A\x07\x00
// http://en.wikipedia.org/wiki/RAR
if ($ext == '.rar' and bin2hex($bytes) == '526172211a0700') {
return TRUE;
}
// ZIP magic number: none, though PK\003\004, PK\005\006 (empty archive),
// or PK\007\00...
单页web应用（SPA）的简单介绍 - 更多技术 - 清泛网 - 专注C/C++及内核技术
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});
}
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参考原文链接：http://www.cnblogs.com/constantince/p/5586851.html
单页应用 SPA
Fancybox doesn't work with jQuery v1.9.0 [ f.browser is undefined / Cannot read property 'msie' ]
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It seems like it exists a bug in jQuery reported here : http://bugs.jquery.com/ticket/13183 that breaks the Fancybox script.
Also check https://github.com/fancyapps/fancyBox/issues/485 for further reference.
As a workaround, rollback to jQuery v1.8.3 while either the jQuery bug ...
surface plots in matplotlib
...y.meshgrid() is a simple way to get 2d x,y mesh out of 1d x and y values.
http://matplotlib.sourceforge.net/mpl_examples/mplot3d/surface3d_demo.py
here's pythonic way to convert your 3-tuples to 3 1d arrays.
data = [(1,2,3), (10,20,30), (11, 22, 33), (110, 220, 330)]
X,Y,Z = zip(*data)
In [7]: X
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Why does changing 0.1f to 0 slow down performance by 10x?
... -msse -mfpmath=sse
(corresponding credits to Carl Hetherington [1])
[1] http://carlh.net/plugins/denormals.php
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How to get disk capacity and free space of remote computer
... the same link on web archive: web.archive.org/web/20150614115736/http://…
– Thomas
Jun 14 '15 at 11:57
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Is there a 'box-shadow-color' property?
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No:
http://www.w3.org/TR/css3-background/#the-box-shadow
You can verify this in Chrome and Firefox by checking the list of computed styles. Other properties that have shorthand methods (like border-radius) have their variations...
How do you round a float to two decimal places in jruby
...mber almost any way you like, and lots more.
Full sprintf documentation: http://www.ruby-doc.org/core-2.0.0/Kernel.html#method-i-sprintf
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Inject errors into already validated form?
...rm.add_error() instead of accessing form._errors directly.
Documentation: https://docs.djangoproject.com/en/stable/ref/forms/api/#django.forms.Form.add_error
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Best practices for in-app database migration for Sqlite
... easy way to update existing tables in-place. See the documentation here: http://www.sqlite.org/lang_altertable.html. For deleting columns or other changes that aren't supported by the "ALTER TABLE" syntax, I create a new table, migrate date into it, drop the old table, and rename the new table to...