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What does T&& (double ampersand) mean in C++11?

...ry on A1& and on A1 const&. That might be fine if factory takes 1 parameter type, but each additional parameter type would multiply the necessary overload set by 2. That's very quickly unmaintainable. rvalue references fix this problem by allowing the standard library to define a std::for...
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Pretty-print an entire Pandas Series / DataFrame

...at '3' for display.max_columns should be 'None' to set that option_context param to its default value. Fixed. – Trutane Sep 7 '18 at 16:59  |  ...
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Using OR in SQLAlchemy

... should return record if any of filters return true. On the other side, if parameter was not defined in a request, our query shouldn't change. Without or_() function we must do something like this: query = Book.query if filter.title and filter.author: query = query.filter((Book.title.ilike(filt...
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Inherit docstrings in Python class inheritance

...e to do it is using __init__.__doc__ = X.__init__.__doc__ + " Also another param" following the __init__ definition in Y but this seems to mess with the formatting, causing extra added spaces. – mgilbert Oct 15 '17 at 9:53 ...
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Storing WPF Image Resources

...ned as 'Resource' not as 'Embedded resource'. /// </summary> /// <param name="pathInApplication">Path without starting slash</param> /// <param name="assembly">Usually 'Assembly.GetExecutingAssembly()'. If not mentionned, I will use the calling assembly</param> /// <...
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How can I check if an argument is defined when starting/calling a batch file?

...on logic in a batch file but the "usage" block never executes even when no parameter is supplied to the batch file. 7 Answe...
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Nginx serves .php files as downloads, instead of executing them

...un/php5-fpm.sock; fastcgi_index index.php; include fastcgi_params; } Edit /etc/php5/fpm/php.ini and make sure cgi.fix_pathinfo is set to 0 Restart nginx and php5-fpm sudo service nginx restart && sudo service php5-fpm restart I have just started using Linux a week ago, s...
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Get output parameter value in ADO.NET

My stored procedure has an output parameter: 8 Answers 8 ...
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Should CSS always preceed Javascript?

....post('/result/:type/:time/:exec', function(req,res) { headresults[req.params.type].push(parseInt(req.params.time, 10)); bodyresults[req.params.type].push(parseInt(req.params.exec, 10)); res.end(); }); app.get('/result/:type', function(req,res) { var o = ''; headresults[req.para...
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How to resize images proportionally / keeping the aspect ratio?

...l when shrinking/enlarging * images to fit into a certain area. * * @param {Number} srcWidth width of source image * @param {Number} srcHeight height of source image * @param {Number} maxWidth maximum available width * @param {Number} maxHeight maximum available height * @return {Objec...