TypeScript 通过访问器get/set访问与方法访问有何区别，各自的有事和缺点

Question

TypeScript 通过访问器get/set访问与方法访问有何区别，各自的有事和缺点
class Manager{
private _userNameList: string[];

set userNameList(userNameList: string[]) {
this._userNameList = userNameList;
}
get userNameList(): string[] {
return this._userNameList;
}

setUserNameList(userNameList: string[]) {
this._userNameList = userNameList;
}
getUserNameList(): string[] {
return this._userNameList;
}
addUserName(userName: string) {
this._userNameList.push(userName);
}
addUserNameList(userNameList: string[]) {
for(let i = 0; i< userNameList.length; i++) {
this._userNameList.push(userNameList[i]);
}
}
}

Answer 1

这是一种和java包括C#（确切地说，在IL层面）相同的写法风格
和直接访问字段相比，你可以加入验证逻辑