Types

A type is a classification for data such as integers and Booleans. Types determine the possible values for the data, the meaning of the data, and the permitted operations on the data.

• Array Types

  Array types are used for representing internally-typed arrays.

• Existent Types

  Existent types are used for preventing out-of-bounds errors at compile time.

• Function (Callback) Types

  Function types are used for representing internally-typed functions and callbacks.

• Nullable Types

  Enables internal types to take null values.

• Primitive Types

  Primitive types are the basic data types of JS++. Primitive types are built into the language itself.

• User-defined Types

  Custom, user-defined types can be declared with the class, interface, or enum keyword.

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