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Why is “if not someobj:” better than “if someobj == None:” in Python?
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In the first test, Python try to convert the object to a bool value if it is not already one. Roughly, we are asking the object : are you meaningful or not ? This is done using the following algorithm :
If the object has a __nonzero__ s...
How do you use https / SSL on localhost?
...d replace it in your browser address bar, you should be able to get in and test.
From there you can right click on your project, click property pages, then start options and assign the start URL - put the new https with the new port (usually 44301 - notice the similarity to port 443) and your proje...
Fast Bitmap Blur For Android SDK
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After some testing and the blurring that I'm doing this actual works well enough for me and it's fast. Thanks!
– Greg
Jan 15 '10 at 17:06
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Javascript Shorthand for getElementById
...Of(s.slice(1))>=0)b.push(a[i]);
return b;
}
}
Usage : _(".test") returns all elements with class name test, and _("#blah") returns an element with id blah.
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Is there a way to use PhantomJS in Python?
...antomjs/ghostdriver in python webdriver?
https://dzone.com/articles/python-testing-phantomjs
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Regex to test if string begins with http:// or https://
...new RegExp("^(http|https)://", "i");
var str = "My String";
var match = re.test(str);
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How to delete shared preferences data from App in Android
...ring the preferences file does not appear to actually delete it. In my own tests by watching the "Data" usage listed in the App Info panel, creating a new SharedPreference file adds 4KB to this value but using editor.clear().commit() does not reduce the number.
– Code Commander...
How does BitLocker affect performance? [closed]
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Some practical tests...
Dell Latitude E7440
Intel Core i7-4600U
16.0 GB
Windows 8.1 Professional
LiteOn IT LMT-256M6M MSATA 256GB
This test is using a system partition. Results for a non-system partition are a bit better.
Score decreas...
Count(*) vs Count(1) - SQL Server
...too.
SYS_GUID() in Oracle is quite computation intensive function.
In my test database, t_even is a table with 1,000,000 rows
This query:
SELECT COUNT(SYS_GUID())
FROM t_even
runs for 48 seconds, since the function needs to evaluate each SYS_GUID() returned to make sure it's not a NULL.
H...
Disable Interpolation when Scaling a
...han pre-scaling and pretty widely-supported).
Live Demo
If you'd like to test the CSS properties discussed in the MDN article on canvas elements, I've made this fiddle which should display something like this, blurry or not, depending on your browser:
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