无参数无返回

Example 1:

Function that does not take arguments and does not return a value:

interface MyClassProps {
    someProp: string;
    onChange(): any;
}
class MyClass extends React.Component<MyClassProps, MyClassState> ...

Mr.He小于 1 分钟

传入属性变为可选项

type Partial<T> = {[P in keyof T]?: T[P]}

Mr.He小于 1 分钟