こんな感じで書けば良い
type F = (num: Number) => number
const getNum : F = (num) => {
return num
}
console.log(getNum(4))
関数を宣言する際に型を渡す。
Register as a new user and use Qiita more conveniently
- You get articles that match your needs
- You can efficiently read back useful information
- You can use dark theme