new operator
In the specific case of throw, throw new() is a shorthand for throw new Exception(). The feature was introduced in c# 9 and you can find the documentation as Target-typed new expressions.
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The new operator uses the internal [] method, and it basically does the following: Initializes a new native object Sets the internal [] of this object, pointing to the Function prototype
javascript
83 new() describes a constructor signature in typescript. What that means is that it describes the shape of the constructor. For instance take {new(): T; }. You are right it is a type. It is the type of a class
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