解决具体问题
您可以使用类型断言来告诉编译器您更了解：
public clone(): any { var cloneObj = new (<any>this.constructor()); for (var attribut in this) { if (typeof this[attribut] === "object") { cloneObj[attribut] = this[attribut].clone(); } else { cloneObj[attribut] = this[attribut]; } } return cloneObj;}克隆
请记住，有时最好编写自己的映射-而不是完全动态。但是，您可以使用一些“克隆”技巧来给您带来不同的效果。
我将在下面的所有示例中使用以下代码：
class Example { constructor(public type: string) { }}class Customer { constructor(public name: string, public example: Example) { } greet() { return 'Hello ' + this.name; }}var customer = new Customer('David', new Example('DavidType'));选项1：点差
属性： 是
方法：否
深度复制：否
var clone = { ...customer };alert(clone.name + ' ' + clone.example.type); // David DavidType//alert(clone.greet()); // Not OKclone.name = 'Steve';clone.example.type = 'SteveType';alert(customer.name + ' ' + customer.example.type); // David SteveType选项2：Object.assign
属性： 是
方法：否
深度复制：否
var clone = Object.assign({}, customer);alert(clone.name + ' ' + clone.example.type); // David DavidTypealert(clone.greet()); // Not OK, although compiler won't spot itclone.name = 'Steve';clone.example.type = 'SteveType';alert(customer.name + ' ' + customer.example.type); // David SteveType选项3：Object.create
属性： 继承的
方法： 继承的
深复制： 浅的继承 （深的更改会影响原始副本和克隆副本）
var clone = Object.create(customer);alert(clone.name + ' ' + clone.example.type); // David DavidTypealert(clone.greet()); // OKcustomer.name = 'Misha';customer.example = new Example("MishaType");// clone sees changes to original alert(clone.name + ' ' + clone.example.type); // Misha MishaTypeclone.name = 'Steve';clone.example.type = 'SteveType';// original sees changes to clonealert(customer.name + ' ' + customer.example.type); // Misha SteveType选项4：深层复制功能
属性： 是
方法：否
深度复制： 是
function deepCopy(obj) { var copy; // Handle the 3 simple types, and null or undefined if (null == obj || "object" != typeof obj) return obj; // Handle Date if (obj instanceof Date) { copy = new Date(); copy.setTime(obj.getTime()); return copy; } // Handle Array if (obj instanceof Array) { copy = []; for (var i = 0, len = obj.length; i < len; i++) { copy[i] = deepCopy(obj[i]); } return copy; } // Handle Object if (obj instanceof Object) { copy = {}; for (var attr in obj) { if (obj.hasOwnProperty(attr)) copy[attr] = deepCopy(obj[attr]); } return copy; } throw new Error("Unable to copy obj! Its type isn't supported.");}var clone = <Customer>deepCopy(customer);alert(clone.name + ' ' + clone.example.type); // David DavidType// alert(clone.greet()); // Not OK - not really a customerclone.name = 'Steve';clone.example.type = 'SteveType';alert(customer.name + ' ' + customer.example.type); // David DavidType
