zqy233的前端学习笔记typescript高级类型Record
Record<K,T>构造具有给定类型T的一组属性K的类型。在将一个类型的属性映射到另一个类型的属性时，Record非常方便。
他会将一个类型的所有属性值都映射到另一个类型上并创造一个新的类型
示例：
ts
interface EmployeeType {
id: number
fullname: string
role: string
}
let employees: Record<number, EmployeeType> = {
0: { id: 1, fullname: "John Doe", role: "Designer" },
1: { id: 2, fullname: "Ibrahima Fall", role: "Developer" },
2: { id: 3, fullname: "Sara Duckson", role: "Developer" },
}
// 0: { id: 1, fullname: "John Doe", role: "Designer" },
// 1: { id: 2, fullname: "Ibrahima Fall", role: "Developer" },
// 2: { id: 3, fullname: "Sara Duckson", role: "Developer" }
interface EmployeeType {
id: number
fullname: string
role: string
}
let employees: Record<number, EmployeeType> = {
0: { id: 1, fullname: "John Doe", role: "Designer" },
1: { id: 2, fullname: "Ibrahima Fall", role: "Developer" },
2: { id: 3, fullname: "Sara Duckson", role: "Developer" },
}
// 0: { id: 1, fullname: "John Doe", role: "Designer" },
// 1: { id: 2, fullname: "Ibrahima Fall", role: "Developer" },
// 2: { id: 3, fullname: "Sara Duckson", role: "Developer" }