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How can I setup & run PhantomJS on Ubuntu?
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Guidouil's answer put me on the right track. I had to add one additional symlink to /usr/bin/,...
Keep CMD open after BAT file executes
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edited Jun 23 at 19:17
Mister SirCode
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answered Jul 3...
How to select multiple rows filled with constants?
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SELECT 1, 2, 3
UNION ALL SELECT 4, 5, 6
UNION ALL SELECT 7, 8, 9
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How to save a plot as image on the disk?
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383
There are two closely-related questions, and an answer for each.
1. An image will be genera...
Is it possible to use argsort in descending order?
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235
If you negate an array, the lowest elements become the highest elements and vice-versa. Theref...
C++ Convert string (or char*) to wstring (or wchar_t*)
...out in the comments and explained in https://stackoverflow.com/a/17106065/6345 there are cases when using the standard library to convert between UTF-8 and UTF-16 might give unexpected differences in the results on different platforms. For a better conversion, consider std::codecvt_utf8 as described...
Detect when a window is resized using JavaScript ?
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edited Jun 8 '10 at 13:13
answered Jun 8 '10 at 10:21
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Why does Python print unicode characters when the default encoding is ASCII?
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>>> import sys
>>> print sys.stdout.encoding
ANSI_X3.4-1968
Bingo!
If you now try to output some unicode character outside of ascii you should get a nice error message
>>> print u'\xe9'
UnicodeEncodeError: 'ascii' codec can't encode character u'\xe9'
in positio...
Get a pixel from HTML Canvas?
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There's a section about pixel manipulation in the W3C documentation.
Here's an example on how to invert an image:
var context = document.getElementById('myCanvas').getContext('2d');
// Get the CanvasPixelArray from the given coordinates and dimensions.
var imgd = context.g...
conditional unique constraint
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Add a check constraint like this. The difference is, you'll return false if Status = 1 and Cou...