Types of empty collections Types of empty collections You often need to specify the type when you assign an empty list ordict to a new variable, as mentioned earlier: a : Li...
Variance of generic types Variance of generic types There are three main kinds of generic types with respect to subtyperelations between them: invariant, covariant, and contrav...
Callable types (and lambdas) Callable types (and lambdas) You can pass around function objects and bound methods in staticallytyped code. The type of a function that accepts ar...
Compatibility of container types Compatibility of container types The following program generates a mypy error, since List[int] is not compatible with List[object] : def f ( ...
Explicit types for variables Explicit types for variables You can override the inferred type of a variable by using avariable type annotation: from typing import Union ...
Zero Bit Types void Pointers to Zero Bit Types Zero Bit Types For some types, @sizeOf is 0: void The Integers u0 and i0 . Arrays and Vectors with len 0, or with an ...
More about types Types and sets (and Any and Union{}/Bottom) UnionAll types Free variables TypeNames Tuple types Diagonal types Subtyping diagonal variables Introduction to ...
1.7 Enum Types 1.7 Enum Types TypeScript enables programmers to summarize a set of numeric constants as an enum type. The example below creates an enum type to represent operat...