在看react项目时,遇到了ts类型的问题,有行代码看不懂
import React from 'react';
export type TabProps = {
curStep: Number;
onStepClick?: React.Dispatch<React.SetStateAction<number>>;
};
const Tab: React.FC<TabProps> = (props) => {
const { curStep = 0, onStepClick } = props;
//do something
}
不理解的地方
这行代码没看懂是什么意思,求具体解答🤗
onStepClick?: React.Dispatch<React.SetStateAction<number>>;