解决TypeScrip遍历对象报错问题

声明接口，遍历对象报错

interface DEPT {name: string;age: number,[key: string]: any
}

解决方式

// 用于测试
const dept:DEPT={name: "Smile",age: 18
}

keyof

function department(obj: DEPT) {let key: (keyof DEPT);for (key in obj) {console.log('info：', obj[key])}
}
department(dept)

给对象声明一个接口

interface DEPT {name: string;age: number,[key: string]: any
}function department(obj: DEPT) {for (let key in obj) {console.log('info：', obj[key])}
}
department(dept)

泛型

function department<T extends object>(obj: T) {for (let key in obj) {console.log('info：', obj[key])}
}
department(dept)

as any

function department(obj:DEPT) {for (let key in obj) {console.log('info', (obj as any)[key])}
}
department(dept)

as any

function department(obj:DEPT) {for (let key in obj) {console.log('info', (obj as any)[key])}
}
department(dept)