Generic type variables

The `Greater` primitive wrapper object generic type variables

Greater<Value>

Valueextendsnumber

​A generic type variable constrained by the number, by default of the value captured from the supplied value indicates the primitive value type of a new Greater instance.

greater.class.ts

class Greater<
  Value extends number // <--- Declare generic type variable Value.
> extends Number{
  constructor(
    value: Value // <--- Capture generic type variable Value.
  ) {
    super(value);
  }
}