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Why use String.Format? [duplicate]

Why would anyone use String.Format in C# and VB .NET as opposed to the concatenation operators ( & in VB, and + in C#)? ...
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Why would one use nested classes in C++?

... BOX, BAG, CRATE }; Product(ProductType t, ProductBoxType b, String name); // the rest of the class: fields, methods }; One then will call: Product p(Product::FANCY, Product::BOX); But when looking at code completion proposals for Product::, one will often get all the possibl...
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How to execute a raw update sql with dynamic binding in rails

... ActiveRecord::Base.connection has a quote method that takes a string value (and optionally the column object). So you can say this: ActiveRecord::Base.connection.execute(<<-EOQ) UPDATE foo SET bar = #{ActiveRecord::Base.connection.quote(baz)} EOQ Note if you're in a Ra...
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Using querySelector with IDs that are numbers

... selectors syntax Attribute values must be a valid CSS identifiers or String. Thus, digits or alphanumeric strings with leading digit does not qualify as a valid identifier. If you are using an ID generator utility for generating an identifier, you might end up with alpha numeric ids with l...
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SQlite Getting nearest locations (with latitude and longitude)

..., mult * radius, 270); strWhere = " WHERE " + COL_X + " > " + String.valueOf(p3.x) + " AND " + COL_X + " < " + String.valueOf(p1.x) + " AND " + COL_Y + " < " + String.valueOf(p2.y) + " AND " + COL_Y + " > " + String.valueOf(p4.y); COL_X is the name of ...
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Doctrine and composite unique keys

...html So the original example could look something like this: /** * @var string $videoDimension * * @ORM\Id @ORM\Column(type="string") */ private $videoDimension; /** * @var string $videoBitrate * * @ORM\Id @ORM\Column(type="string") */ private $videoBitrate; A few notes here: Column "...
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What does the exclamation mark do before the function?

...l generally change the above code as (function (){}()) Now we added two extra characters (,) apart from adding () at the end of the function which necessary to call the function. In the process of minification we generally focus to reduce the file size. So we can also write the above function as ...
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How can I include a YAML file inside another?

...AML" ... this is simply a vendor-specific YAML-compatible library that has extra stuff that is not part of YAML. – dreftymac Aug 10 '17 at 1:33 3 ...
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How do I generate random integers within a specific range in Java?

...this case means that after 2^53 executions, some numbers will have had one extra occourance, on average. – Cephalopod Aug 29 '19 at 9:48 add a comment  |  ...
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It is more efficient to use if-return-return or if-else-return?

...e blocks when possible. See the Anti-if Campaign Also, they don't charge 'extra' for the line, you know :p "Simple is better than complex" & "Readability is king" delta = 1 if (A > B) else -1 return A + delta sha...