ES6基础

code/ES6/src/11_proxies_and_reflection/01_proxies.js

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+let person = {
+	name: "heibai",
+	idCard: null
+};
+let proxy = new Proxy(person, {
+	set(target, propertyKey, value, receiver) {
+		if (propertyKey === "idCard" && value.length !== 18) {
+			throw new Error("输入的身份证长度必须为18位");
+		}
+		// 调用反射进行修改
+		return Reflect.set(target, propertyKey, value, receiver);
+	},
+	get(target, propertyKey, receiver) {
+		if (propertyKey === "idCard") {
+			throw new Error("身份证是私密信息，无权读取");
+		}
+		//  调用反射获取值
+		return Reflect.get(target, propertyKey, receiver);
+	}
+});
+proxy.name = "ying";
+console.log(proxy.name);
+proxy.idCard = "123456789123456789";
+console.log(proxy.idCard);
+