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Determine font color based on background color
...es it generated strange, very intensive colors that were hard to watch and read.
After long hours of testing and trying to solve this problem, I found out that the best solution is to select white font for "dark" colors, and black font for "bright" colors.
Here's an example of function I am using...
Is a view faster than a simple query?
...
totally disagree... reading from a view allows the SQL to be rewritten.. and it's generally FASTER to read from a view (than from a dump of the view).
– Aaron Kempf
Jan 9 '13 at 20:23
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How to upload a file in Django? [closed]
...y syncdb
> python manage.py runserver
Results
Finally, everything is ready. On default Django developement environment the list of uploaded documents can be seen at localhost:8000/list/. Today the files are uploaded to /path/to/myproject/media/documents/2011/12/17/ and can be opened from the l...
Changing user agent on urllib2.urlopen
...lib2.Request('www.example.com', None, headers)
html = urllib2.urlopen(req).read()
Or, a bit shorter:
req = urllib2.Request('www.example.com', headers={ 'User-Agent': 'Mozilla/5.0' })
html = urllib2.urlopen(req).read()
sh...
Is it possible to use 'else' in a list comprehension? [duplicate]
..., several expressions can be nested, resulting in more elses and harder to read code:
>>> ["A" if b=="e" else "d" if True else "x" for b in "comprehension"]
['d', 'd', 'd', 'd', 'd', 'A', 'd', 'A', 'd', 'd', 'd', 'd', 'd']
>>>
On a related note, a comprehension can also contain ...
node.js remove file
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You shouldn't check if it exists if there are multiple threads or processes that might be using or trying to delete the same file, in which case your check that the file exists will become invalid between the time you check that it exists and the time you try to delete it. Just che...
Declaring Multiple Variables in JavaScript
...a matter of the few bytes saved, then maybe. But if you take into account readability and maintainability, I think you'll find that premature optimization is usually the wrong way to go, especially since modern browsers will collect and initialize all the variables in a scope on a pre-execution pas...
Get img thumbnails from Vimeo?
... url works well. also, the API above doesnt work so go to vimeo.com/api to read about it.
– fedmich
Jun 28 '11 at 0:52
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std::vector versus std::array in C++
...s, assuming you are doing only the things built-in arrays allow you to do (read and write to existing elements).
...automatically resizes when new elements are inserted.
...allows you to insert new elements at the beginning or in the middle of the vector, automatically "shifting" the rest of the ele...
SQL Data Reader - handling Null column values
I'm using a SQLdatareader to build POCOs from a database. The code works except when it encounters a null value in the database. For example, if the FirstName column in the database contains a null value, an exception is thrown.
...