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Tainted canvases may not be exported
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Post your images to a site that supports cross-domain sharing (like dropbox.com). Be sure you put your images in dropbox's public folder and also set the cross origin flag when downloading the image (var img=new Image(); img.crossOrigin="anonymous" ...)
Install a webserver on your development comp...
Is there a way to pass optional parameters to a function?
...d an optional parameter.
First, you can use special formal parameter syntax *. If the function definition has a formal parameter preceded by a single *, then Python populates that parameter with any positional parameters that aren't matched by preceding formal parameters (as a tuple). If the functi...
How to remove all of the data in a table using Django
...del._meta.db_table
sql = "DROP TABLE %s;" % (table_name, )
cursor.execute(sql)
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How do I purge a linux mail box with huge number of emails? [closed]
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It is not a good praxis data manipulation from outside an application. If there is an option or command that can do the job, it is better to use it. As @timaschew answered, you can use the ‘d’ command inside the mail tool.
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Decimal number regular expression, where digit after decimal is optional
I need a regular expression that validates a number, but doesn't require a digit after the decimal.
ie.
15 Answers
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How do I fix “Failed to sync vcpu reg” error?
I'm trying to use the Intel HAX x86 emulator for Windows (8, if that matters). I installed everything and created an AVD for the android version, and everything appears correct, but when I run it, I get this output:
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How to prompt for user input and read command-line arguments [closed]
...md module for easily creating a mini-command line interpreter (with help texts and autocompletion) and raw_input (input for Python 3+) for reading a line of text from the user.
text = raw_input("prompt") # Python 2
text = input("prompt") # Python 3
Command line inputs are in sys.argv. Try this ...
Does the join order matter in SQL?
...same as b LEFT JOIN a
Outer joins are not associative either, so in your examples which involve both (commutativity and associativity) properties:
a LEFT JOIN b
ON b.ab_id = a.ab_id
LEFT JOIN c
ON c.ac_id = a.ac_id
is equivalent to:
a LEFT JOIN c
ON c.ac_id = a.ac_id
LEFT JOIN...
An item with the same key has already been added
...1 (it'll throw the error). Also, check to make sure there's no similar edmx names (table column has "CURRENCY", one of Navigation Properties name had "Currency")
– Robert Koch
Mar 1 '12 at 23:06
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Why would I ever use push_back instead of emplace_back?
...e a bit over the past four years. I have come to the conclusion that most explanations about push_back vs. emplace_back miss the full picture.
Last year, I gave a presentation at C++Now on Type Deduction in C++14. I start talking about push_back vs. emplace_back at 13:49, but there is useful inform...