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What does !important mean in CSS?

... It means, essentially, what it says; that 'this is important, ignore subsequent rules, and any usual specificity issues, apply this rule!' In normal use a rule defined in an external stylesheet is overruled by a style define...
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Is it worth using Python's re.compile?

Is there any benefit in using compile for regular expressions in Python? 26 Answers 26...
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Are there disadvantages to using a generic varchar(255) for all text-based fields?

...elds will ever come close to having 255 characters. (If you're wondering, it's this way because Ruby on Rails migrations map String fields to VARCHAR(255) by default and I never bothered to override it). ...
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How can I add an empty directory to a Git repository?

How can I add an empty directory (that contains no files) to a Git repository? 35 Answers ...
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What is Node.js' Connect, Express and “middleware”?

Despite knowing JavaScript quite well, I'm confused what exactly these three projects in Node.js ecosystem do. Is it something like Rails' Rack? Can someone please explain? ...
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When is a C++ destructor called?

...es a program call a class' destructor method in C++? I have been told that it is called whenever an object goes out of scope or is subjected to a delete ...
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Can someone explain mappedBy in JPA and Hibernate?

...am new to hibernate and need to use one-to-many and many-to-one relations. It is a bi-directional relationship in my objects, so that I can traverse from either direction. mappedBy is the recommended way to go about it, however, I couldn't understand it. Can someone explain: ...
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Swift: Pass array by reference?

...follow | edited Nov 15 '17 at 21:23 iwasrobbed 44.5k2020 gold badges138138 silver badges187187 bronze badges ...
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How to use index in select statement?

... If you want to test the index to see if it works, here is the syntax: SELECT * FROM Table WITH(INDEX(Index_Name)) The WITH statement will force the index to be used. share | ...
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Haskell Type vs Data Constructor

...alue is expected. Data constructors To make things simple, we can start with an example of a type that represents a colour. data Colour = Red | Green | Blue Here, we have three data constructors. Colour is a type, and Green is a constructor that contains a value of type Colour. Similarly, Red a...