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CSS hexadecimal RGBA?

...re support this notation now, Edge still missing but will probably follow (https://caniuse.com/#feat=css-rrggbbaa). share | improve this answer | follow | ...
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Is arr.__len__() the preferred way to get the length of an array in Python?

...eptually a sequence. For a complete list of interfaces, have a look here: http://docs.python.org/reference/datamodel.html#basic-customization share | improve this answer | f...
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Check whether a variable is a string in Ruby

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Peak memory usage of a linux/unix process

...use of --pages-as-heap to measure all memory in a process. More info here: http://valgrind.org/docs/manual/ms-manual.html This will slow down your command significantly. share | improve this answer ...
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How do I build a numpy array from a generator?

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Using vagrant to run virtual machines with desktop environment

My company's development environment is based on virtual machines, running on VirtualBox. We would like to move one step further, and use the capabilities of Vagrant to have the description of the machine in a text file and then be able to "raise" that machine based on that text file. Combined to pu...
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Delete rows from a pandas DataFrame based on a conditional expression involving len(string) giving K

... I came up with a way using a list comprehension: df[[(len(x) < 2) for x in df['column name']]] but yours is much nicer. Thanks for your help! – sjs Dec 13 '12 at 4:17 ...
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JavaScript file upload size validation

...omplete example: <!DOCTYPE HTML> <html> <head> <meta http-equiv="Content-type" content="text/html;charset=UTF-8"> <title>Show File Data</title> <style type='text/css'> body { font-family: sans-serif; } </style> <script type='text/javascript'&gt...
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Javascript when to use prototypes

... more like instance method. The object's approach is like Static methods. https://developer.mozilla.org/en/Introduction_to_Object-Oriented_JavaScript share | improve this answer | ...
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How to read the RGB value of a given pixel in Python?

... I used this on my Mac (Pypi): easy_install --find-links http://www.pythonware.com/products/pil/ Imaging – Mazyod Dec 18 '13 at 11:51 ...