typing

问题 What is the correct type annotation for a __init__ function in python? class MyClass: ... Which of the following would make more sense? def __init__(self): # type: (None) -> None def __init__(self): # type: (MyClass) -> MyClass def __init__(self): # type: (None) -> MyClass Since we would normally instantiate as myclass = MyClass() , but the __init__ function itself has no return value. 回答1: self should be omitted from the annotation when it is given as a comment, and __init__() should be

问题 What is the correct type annotation for a __init__ function in python? class MyClass: ... Which of the following would make more sense? def __init__(self): # type: (None) -> None def __init__(self): # type: (MyClass) -> MyClass def __init__(self): # type: (None) -> MyClass Since we would normally instantiate as myclass = MyClass() , but the __init__ function itself has no return value. 回答1: self should be omitted from the annotation when it is given as a comment, and __init__() should be

问题 I've been trying to figure out how to create 2 mutually-incompatible number-like/integer types in TS. For example, in the code below, height and weight are both number-like, but the concept of adding them together or treating them equivalently is nonsensical and should be an error. type height = number; // inches type weight = number; // pounds var a: height = 68; var b: weight = operateScale(); // Call to external, non-TS function, which returns a weight. console.log(a+b); // Should be an

问题 I've been trying to figure out how to create 2 mutually-incompatible number-like/integer types in TS. For example, in the code below, height and weight are both number-like, but the concept of adding them together or treating them equivalently is nonsensical and should be an error. type height = number; // inches type weight = number; // pounds var a: height = 68; var b: weight = operateScale(); // Call to external, non-TS function, which returns a weight. console.log(a+b); // Should be an

问题 I've been trying to figure out how to create 2 mutually-incompatible number-like/integer types in TS. For example, in the code below, height and weight are both number-like, but the concept of adding them together or treating them equivalently is nonsensical and should be an error. type height = number; // inches type weight = number; // pounds var a: height = 68; var b: weight = operateScale(); // Call to external, non-TS function, which returns a weight. console.log(a+b); // Should be an

问题 I've been trying to figure out how to create 2 mutually-incompatible number-like/integer types in TS. For example, in the code below, height and weight are both number-like, but the concept of adding them together or treating them equivalently is nonsensical and should be an error. type height = number; // inches type weight = number; // pounds var a: height = 68; var b: weight = operateScale(); // Call to external, non-TS function, which returns a weight. console.log(a+b); // Should be an

来源： https://stackoverflow.com/questions/52822933/incompatible-types-in-assignment-mypy

来源： https://stackoverflow.com/questions/60202691/python-typing-declare-return-value-type-based-on-function-argument

来源： https://stackoverflow.com/questions/60202691/python-typing-declare-return-value-type-based-on-function-argument

来源： https://stackoverflow.com/questions/58609010/python-typing-is-not-getting-enforced