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Structs versus classes
I'm about to create 100,000 objects in code. They are small ones, only with 2 or 3 properties. I'll put them in a generic list and when they are, I'll loop them and check value a and maybe update value b .
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How to know which version of Symfony I have?
I know that I have downloaded a Symfony2 project and started with but I have updated my vendor several times and I want to know which version of symfony I have
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Javascript - removing undefined fields from an object [duplicate]
Is there a clean way to remove undefined fields from an object?
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Sticky sidebar: stick to bottom when scrolling down, top when scrolling up
I have been looking for some time now for a solution to my sticky sidebar problem. I have a specific idea of how I would like it to act; effectively, I would like it to stick to the bottom as you scroll down, and then as soon as you scroll back up I would like it to stick to the top, in a fluid moti...
SyntaxError: Non-ASCII character '\xa3' in file when function returns '£'
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I'd recommend reading that PEP the error gives you. The problem is that your code is trying to use the ASCII encoding, but the pound symbol is not an ASCII character. Try using UTF-8 encoding. You can start by putting # -*- coding: utf-8 -*- at the top of your .py file. To get mor...
How do I sort one vector based on values of another
I have a vector x, that I would like to sort based on the order of values in vector y. The two vectors are not of the same length.
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How to sort a list/tuple of lists/tuples by the element at a given index?
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sorted_by_second = sorted(data, key=lambda tup: tup[1])
or:
data.sort(key=lambda tup: tup[1]) # sorts in place
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improv...
Total number of items defined in an enum
How can I get the number of items defined in an enum?
10 Answers
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How can prepared statements protect from SQL injection attacks?
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The idea is very simple - the query and the data are sent to the database server separately.
That's all.
The root of the SQL injection problem is in the mixing of the code and the data.
In fact, our SQL query is a legitimate program.
And we are creating such a program dynamically, adding...
Is the 'override' keyword just a check for a overridden virtual method?
...word in C++11 is nothing more than a check to make sure that the function being implemented is the override ing of a virtual function in the base class.
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