You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
16 lines
400 B
16 lines
400 B
// 泛型工具类型：Record<Keys, type> 构造一个对象类型，属性键为 Keys, 属性类型为 Type
|
|
|
|
type RecordObj = Record< 'a' | 'b' | 'c', string[]> // 表示属性键 a、b、c 都是 string 类型的数组
|
|
|
|
let obj: RecordObj = {
|
|
a: ['a'],
|
|
b: ['b'],
|
|
c: ['c']
|
|
}
|
|
|
|
// 不使用工具类型 Record
|
|
type RecordObj2 = {
|
|
a2: string[]
|
|
b2: string[]
|
|
c2: string[]
|
|
}
|